12651401516 has 36 divisors (see below), whose sum is σ = 24132994704. Its totient is φ = 5800392000.

The previous prime is 12651401507. The next prime is 12651401533. The reversal of 12651401516 is 61510415621.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40106 + ... + 164046.

It is an arithmetic number, because the mean of its divisors is an integer number (670360964).

Almost surely, 2^12651401516 is an apocalyptic number.

It is an amenable number.

12651401516 is a deficient number, since it is larger than the sum of its proper divisors (11481593188).

12651401516 is a wasteful number, since it uses less digits than its factorization.

12651401516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124122 (or 124107 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 12651401516 in words is "twelve billion, six hundred fifty-one million, four hundred one thousand, five hundred sixteen".