4156423400640 has 224 divisors, whose sum is σ = 15389673868800. Its totient is φ = 950039559168.

The previous prime is 4156423400639. The next prime is 4156423400663. The reversal of 4156423400640 is 460043246514.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5982102 + ... + 6640661.

It is an arithmetic number, because the mean of its divisors is an integer number (68703901200).

Almost surely, 2^{4156423400640} is an apocalyptic number.

4156423400640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4156423400640 is an abundant number, since it is smaller than the sum of its proper divisors (11233250468160).

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

4156423400640 is a wasteful number, since it uses less digits than its factorization.

4156423400640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12622804 (or 12622780 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 4156423400640 in words is "four trillion, one hundred fifty-six billion, four hundred twenty-three million, four hundred thousand, six hundred forty".