12052157856 has 48 divisors (see below), whose sum is σ = 31992408000. Its totient is φ = 3972243968.

The previous prime is 12052157833. The next prime is 12052157861. The reversal of 12052157856 is 65875125021.

12052157856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696756 + ... + 713843.

It is an arithmetic number, because the mean of its divisors is an integer number (666508500).

Almost surely, 2^12052157856 is an apocalyptic number.

12052157856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12052157856 is an abundant number, since it is smaller than the sum of its proper divisors (19940250144).

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

12052157856 is a wasteful number, since it uses less digits than its factorization.

12052157856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410701 (or 1410693 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 12052157856 in words is "twelve billion, fifty-two million, one hundred fifty-seven thousand, eight hundred fifty-six".