156206668 has 12 divisors (see below), whose sum is σ = 273648312. Its totient is φ = 78021440.

The previous prime is 156206663. The next prime is 156206669. The reversal of 156206668 is 866602651.

It is a self number, because there is not a number n which added to its sum of digits gives 156206668.

It is not an unprimeable number, because it can be changed into a prime (156206663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16078 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (22804026).

Almost surely, 2^156206668 is an apocalyptic number.

It is an amenable number.

156206668 is a deficient number, since it is larger than the sum of its proper divisors (117441644).

156206668 is a wasteful number, since it uses less digits than its factorization.

156206668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40952 (or 40950 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 156206668 is about 12498.2665998130. The cubic root of 156206668 is about 538.5588780571.

The spelling of 156206668 in words is "one hundred fifty-six million, two hundred six thousand, six hundred sixty-eight".