15616621200651 has 16 divisors (see below), whose sum is σ = 20825920473600. Its totient is φ = 10409201580960.

The previous prime is 15616621200643. The next prime is 15616621200671. The reversal of 15616621200651 is 15600212661651.

It is not a de Polignac number, because 15616621200651 - 2³ = 15616621200643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15616621200611) 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, 630172881 + ... + 630197661.

It is an arithmetic number, because the mean of its divisors is an integer number (1301620029600).

Almost surely, 2^{15616621200651} is an apocalyptic number.

15616621200651 is a deficient number, since it is larger than the sum of its proper divisors (5209299272949).

15616621200651 is a wasteful number, since it uses less digits than its factorization.

15616621200651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54226.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 15616621200651 in words is "fifteen trillion, six hundred sixteen billion, six hundred twenty-one million, two hundred thousand, six hundred fifty-one".