15606640012 has 24 divisors (see below), whose sum is σ = 27625038896. Its totient is φ = 7713957888.

The previous prime is 15606640003. The next prime is 15606640081. The reversal of 15606640012 is 21004660651.

15606640012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 319828 + ... + 365380.

Almost surely, 2^15606640012 is an apocalyptic number.

It is an amenable number.

15606640012 is a deficient number, since it is larger than the sum of its proper divisors (12018398884).

15606640012 is a wasteful number, since it uses less digits than its factorization.

15606640012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46537 (or 46535 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 15606640012 in words is "fifteen billion, six hundred six million, six hundred forty thousand, twelve".