40656574055 has 4 divisors (see below), whose sum is σ = 48787888872. Its totient is φ = 32525259240.

The previous prime is 40656574027. The next prime is 40656574073. The reversal of 40656574055 is 55047565604.

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

It is not a de Polignac number, because 40656574055 - 2²² = 40652379751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4065657401 + ... + 4065657410.

It is an arithmetic number, because the mean of its divisors is an integer number (12196972218).

Almost surely, 2^40656574055 is an apocalyptic number.

40656574055 is a deficient number, since it is larger than the sum of its proper divisors (8131314817).

40656574055 is an equidigital number, since it uses as much as digits as its factorization.

40656574055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131314816.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 40656574055 in words is "forty billion, six hundred fifty-six million, five hundred seventy-four thousand, fifty-five".