12387695616 has 66 divisors (see below), whose sum is σ = 35769228872. Its totient is φ = 4129228800.

The previous prime is 12387695611. The next prime is 12387695629. The reversal of 12387695616 is 61659678321.

12387695616 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 76 + 9 + 561 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387695611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 662860 + ... + 681291.

Almost surely, 2^12387695616 is an apocalyptic number.

12387695616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12387695616 is an abundant number, since it is smaller than the sum of its proper divisors (23381533256).

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

12387695616 is a wasteful number, since it uses less digits than its factorization.

12387695616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344177 (or 1344156 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 12387695616 in words is "twelve billion, three hundred eighty-seven million, six hundred ninety-five thousand, six hundred sixteen".