15606640036 has 12 divisors (see below), whose sum is σ = 29412514012. Its totient is φ = 7203064608.

The previous prime is 15606640003. The next prime is 15606640081. The reversal of 15606640036 is 63004660651.

15606640036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4677192100 + 10929447936 = 68390^2 + 104544^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 15606639977 and 15606640004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150063795 + ... + 150063898.

Almost surely, 2^15606640036 is an apocalyptic number.

It is an amenable number.

15606640036 is a deficient number, since it is larger than the sum of its proper divisors (13805873976).

15606640036 is a wasteful number, since it uses less digits than its factorization.

15606640036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300127710 (or 300127708 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 15606640036 in words is "fifteen billion, six hundred six million, six hundred forty thousand, thirty-six".