156163866 has 16 divisors (see below), whose sum is σ = 313002144. Its totient is φ = 51942224.

The previous prime is 156163849. The next prime is 156163867. The reversal of 156163866 is 668361651.

It is not an unprimeable number, because it can be changed into a prime (156163867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25065 + ... + 30668.

It is an arithmetic number, because the mean of its divisors is an integer number (19562634).

Almost surely, 2^156163866 is an apocalyptic number.

156163866 is an abundant number, since it is smaller than the sum of its proper divisors (156838278).

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

156163866 is a wasteful number, since it uses less digits than its factorization.

156163866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56205.

The product of its digits is 155520, while the sum is 42.

The square root of 156163866 is about 12496.5541650489. The cubic root of 156163866 is about 538.5096836082.

The spelling of 156163866 in words is "one hundred fifty-six million, one hundred sixty-three thousand, eight hundred sixty-six".