15606616661013 has 24 divisors (see below), whose sum is σ = 24247000945728. Its totient is φ = 8903027715456.

The previous prime is 15606616661011. The next prime is 15606616661057. The reversal of 15606616661013 is 31016661660651.

It is not a de Polignac number, because 15606616661013 - 2¹ = 15606616661011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15606616661011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89430081 + ... + 89604422.

It is an arithmetic number, because the mean of its divisors is an integer number (1010291706072).

Almost surely, 2^{15606616661013} is an apocalyptic number.

It is an amenable number.

15606616661013 is a deficient number, since it is larger than the sum of its proper divisors (8640384284715).

15606616661013 is a wasteful number, since it uses less digits than its factorization.

15606616661013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179035113 (or 179035106 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 15606616661013 in words is "fifteen trillion, six hundred six billion, six hundred sixteen million, six hundred sixty-one thousand, thirteen".