12505739116 has 48 divisors (see below), whose sum is σ = 23686483968. Its totient is φ = 5743080000.

The previous prime is 12505739111. The next prime is 12505739123. The reversal of 12505739116 is 61193750521.

It is a super-2 number, since 2×12505739116² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12505739111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16651741 + ... + 16652491.

It is an arithmetic number, because the mean of its divisors is an integer number (493468416).

Almost surely, 2^12505739116 is an apocalyptic number.

It is an amenable number.

12505739116 is a deficient number, since it is larger than the sum of its proper divisors (11180744852).

12505739116 is a wasteful number, since it uses less digits than its factorization.

12505739116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 1940 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 12505739116 in words is "twelve billion, five hundred five million, seven hundred thirty-nine thousand, one hundred sixteen".