40545165454 has 4 divisors (see below), whose sum is σ = 60817748184. Its totient is φ = 20272582726.

The previous prime is 40545165431. The next prime is 40545165469. The reversal of 40545165454 is 45456154504.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40545165454² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40545165454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10136291362 + ... + 10136291365.

It is an arithmetic number, because the mean of its divisors is an integer number (15204437046).

Almost surely, 2^40545165454 is an apocalyptic number.

40545165454 is a deficient number, since it is larger than the sum of its proper divisors (20272582730).

40545165454 is a wasteful number, since it uses less digits than its factorization.

40545165454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20272582729.

The product of its (nonzero) digits is 960000, while the sum is 43.

The spelling of 40545165454 in words is "forty billion, five hundred forty-five million, one hundred sixty-five thousand, four hundred fifty-four".