40445501654 has 4 divisors (see below), whose sum is σ = 60668252484. Its totient is φ = 20222750826.

The previous prime is 40445501653. The next prime is 40445501689. The reversal of 40445501654 is 45610554404.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445501653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111375412 + ... + 10111375415.

It is an arithmetic number, because the mean of its divisors is an integer number (15167063121).

Almost surely, 2^40445501654 is an apocalyptic number.

40445501654 is a deficient number, since it is larger than the sum of its proper divisors (20222750830).

40445501654 is a wasteful number, since it uses less digits than its factorization.

40445501654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20222750829.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 40445501654 in words is "forty billion, four hundred forty-five million, five hundred one thousand, six hundred fifty-four".