40254661022445 has 12 divisors (see below), whose sum is σ = 69774745772316. Its totient is φ = 21469152545280.

The previous prime is 40254661022441. The next prime is 40254661022497. The reversal of 40254661022445 is 54422016645204.

40254661022445 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 4 + 6 + 610 + 2 + 24 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5718846570921 + 34535814451524 = 2391411^2 + 5876718^2 .

It is not a de Polignac number, because 40254661022445 - 2² = 40254661022441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 894548022721 = 40254661022445 / (4 + 0 + 2 + 5 + 4 + 6 + 6 + 1 + 0 + 2 + 2 + 4 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 40254661022445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40254661022441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447274011316 + ... + 447274011405.

It is an arithmetic number, because the mean of its divisors is an integer number (5814562147693).

Almost surely, 2^{40254661022445} is an apocalyptic number.

40254661022445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40254661022445 is a deficient number, since it is larger than the sum of its proper divisors (29520084749871).

40254661022445 is a wasteful number, since it uses less digits than its factorization.

40254661022445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894548022732 (or 894548022729 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

Adding to 40254661022445 its reverse (54422016645204), we get a palindrome (94676677667649).

The spelling of 40254661022445 in words is "forty trillion, two hundred fifty-four billion, six hundred sixty-one million, twenty-two thousand, four hundred forty-five".