11601574400856 has 64 divisors (see below), whose sum is σ = 32495810388480. Its totient is φ = 3420611614080.

The previous prime is 11601574400839. The next prime is 11601574400873. The reversal of 11601574400856 is 65800447510611.

It is an interprime number because it is at equal distance from previous prime (11601574400839) and next prime (11601574400873).

It is a congruent number.

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, 593846416 + ... + 593865951.

It is an arithmetic number, because the mean of its divisors is an integer number (507747037320).

Almost surely, 2^{11601574400856} is an apocalyptic number.

It is an amenable number.

11601574400856 is an abundant number, since it is smaller than the sum of its proper divisors (20894235987624).

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

11601574400856 is a wasteful number, since it uses less digits than its factorization.

11601574400856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187712424 (or 1187712420 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 11601574400856 in words is "eleven trillion, six hundred one billion, five hundred seventy-four million, four hundred thousand, eight hundred fifty-six".