156412866 has 16 divisors (see below), whose sum is σ = 317111904. Its totient is φ = 51423264.

The previous prime is 156412859. The next prime is 156412871. The reversal of 156412866 is 668214651.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 178116 + ... + 178991.

It is an arithmetic number, because the mean of its divisors is an integer number (19819494).

Almost surely, 2^156412866 is an apocalyptic number.

156412866 is an abundant number, since it is smaller than the sum of its proper divisors (160699038).

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

156412866 is a wasteful number, since it uses less digits than its factorization.

156412866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357185.

The product of its digits is 69120, while the sum is 39.

The square root of 156412866 is about 12506.5129432628. The cubic root of 156412866 is about 538.7957457437.

The spelling of 156412866 in words is "one hundred fifty-six million, four hundred twelve thousand, eight hundred sixty-six".