40256532166004 has 48 divisors (see below), whose sum is σ = 87834031756800. Its totient is φ = 15684077835360.

The previous prime is 40256532166003. The next prime is 40256532166033. The reversal of 40256532166004 is 40066123565204.

It is a happy number.

40256532166004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40256532166003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16179299 + ... + 18500885.

It is an arithmetic number, because the mean of its divisors is an integer number (1829875661600).

Almost surely, 2^{40256532166004} is an apocalyptic number.

40256532166004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40256532166004 is an abundant number, since it is smaller than the sum of its proper divisors (47577499590796).

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

40256532166004 is a wasteful number, since it uses less digits than its factorization.

40256532166004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377908 (or 2377906 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 40256532166004 in words is "forty trillion, two hundred fifty-six billion, five hundred thirty-two million, one hundred sixty-six thousand, four".