40656657732 has 48 divisors (see below), whose sum is σ = 95384184000. Its totient is φ = 13478318208.

The previous prime is 40656657659. The next prime is 40656657757. The reversal of 40656657732 is 23775665604.

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 15 ways as a sum of consecutive naturals, for example, 1742898 + ... + 1766070.

It is an arithmetic number, because the mean of its divisors is an integer number (1987170500).

Almost surely, 2^40656657732 is an apocalyptic number.

It is an amenable number.

40656657732 is an abundant number, since it is smaller than the sum of its proper divisors (54727526268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40656657732 is a wasteful number, since it uses less digits than its factorization.

40656657732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23972 (or 23970 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 51.

The spelling of 40656657732 in words is "forty billion, six hundred fifty-six million, six hundred fifty-seven thousand, seven hundred thirty-two".