40664256882 has 32 divisors (see below), whose sum is σ = 85328300544. Its totient is φ = 12902457600.

The previous prime is 40664256881. The next prime is 40664256901. The reversal of 40664256882 is 28865246604.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40664256881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780663 + ... + 1803354.

It is an arithmetic number, because the mean of its divisors is an integer number (2666509392).

Almost surely, 2^40664256882 is an apocalyptic number.

40664256882 is an abundant number, since it is smaller than the sum of its proper divisors (44664043662).

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

40664256882 is a wasteful number, since it uses less digits than its factorization.

40664256882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584114.

The product of its (nonzero) digits is 4423680, while the sum is 51.

The spelling of 40664256882 in words is "forty billion, six hundred sixty-four million, two hundred fifty-six thousand, eight hundred eighty-two".