156699946866 has 16 divisors (see below), whose sum is σ = 313403796864. Its totient is φ = 52232665104.

The previous prime is 156699946853. The next prime is 156699946891. The reversal of 156699946866 is 668649996651.

156699946866 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776055 + ... + 956901.

It is an arithmetic number, because the mean of its divisors is an integer number (19587737304).

Almost surely, 2^156699946866 is an apocalyptic number.

156699946866 is an abundant number, since it is smaller than the sum of its proper divisors (156703849998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156699946866 is a wasteful number, since it uses less digits than its factorization.

156699946866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325265.

The product of its digits is 906992640, while the sum is 75.

The spelling of 156699946866 in words is "one hundred fifty-six billion, six hundred ninety-nine million, nine hundred forty-six thousand, eight hundred sixty-six".