15606560651 has 16 divisors (see below), whose sum is σ = 17998381440. Its totient is φ = 13383328320.

The previous prime is 15606560639. The next prime is 15606560657.

15606560651 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 15606560651 - 2¹⁴ = 15606544267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15606560599 and 15606560608.

It is not an unprimeable number, because it can be changed into a prime (15606560657) 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, 111545 + ... + 208938.

It is an arithmetic number, because the mean of its divisors is an integer number (1124898840).

Almost surely, 2^15606560651 is an apocalyptic number.

15606560651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15606560651 is a deficient number, since it is larger than the sum of its proper divisors (2391820789).

15606560651 is a wasteful number, since it uses less digits than its factorization.

15606560651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320746.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 15606560651 in words is "fifteen billion, six hundred six million, five hundred sixty thousand, six hundred fifty-one".