40040260656 has 80 divisors (see below), whose sum is σ = 112878192000. Its totient is φ = 12129384960.

The previous prime is 40040260627. The next prime is 40040260751. The reversal of 40040260656 is 65606204004.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1836636 + ... + 1858308.

It is an arithmetic number, because the mean of its divisors is an integer number (1410977400).

Almost surely, 2^40040260656 is an apocalyptic number.

It is an amenable number.

40040260656 is an abundant number, since it is smaller than the sum of its proper divisors (72837931344).

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

40040260656 is a wasteful number, since it uses less digits than its factorization.

40040260656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25194 (or 25188 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 40040260656 in words is "forty billion, forty million, two hundred sixty thousand, six hundred fifty-six".