12516977196 has 24 divisors (see below), whose sum is σ = 32451422640. Its totient is φ = 4172325696.

The previous prime is 12516977119. The next prime is 12516977203. The reversal of 12516977196 is 69177961521.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57948861 + ... + 57949076.

It is an arithmetic number, because the mean of its divisors is an integer number (1352142610).

Almost surely, 2^12516977196 is an apocalyptic number.

It is an amenable number.

12516977196 is an abundant number, since it is smaller than the sum of its proper divisors (19934445444).

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

12516977196 is a wasteful number, since it uses less digits than its factorization.

12516977196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115897950 (or 115897942 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The spelling of 12516977196 in words is "twelve billion, five hundred sixteen million, nine hundred seventy-seven thousand, one hundred ninety-six".