12158870976 has 126 divisors (see below), whose sum is σ = 40541295600. Its totient is φ = 3473955072.

The previous prime is 12158870959. The next prime is 12158870987. The reversal of 12158870976 is 67907885121.

It is a tau number, because it is divible by the number of its divisors (126).

It is a super-2 number, since 2×12158870976² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 187176 + ... + 243623.

Almost surely, 2^12158870976 is an apocalyptic number.

12158870976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12158870976 is an abundant number, since it is smaller than the sum of its proper divisors (28382424624).

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

12158870976 is a wasteful number, since it uses less digits than its factorization.

12158870976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430831 (or 430811 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

It can be divided in two parts, 12158870 and 976, that added together give a triangular number (12159846 = T₄₉₃₁).

The spelling of 12158870976 in words is "twelve billion, one hundred fifty-eight million, eight hundred seventy thousand, nine hundred seventy-six".