156166680 has 32 divisors (see below), whose sum is σ = 468500400. Its totient is φ = 41644416.

The previous prime is 156166679. The next prime is 156166721. The reversal of 156166680 is 86661651.

156166680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 650575 + ... + 650814.

Almost surely, 2^156166680 is an apocalyptic number.

156166680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156166680 is an abundant number, since it is smaller than the sum of its proper divisors (312333720).

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

156166680 is a wasteful number, since it uses less digits than its factorization.

156166680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301403 (or 1301399 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 156166680 is about 12496.6667555793. Note that the first 3 decimals coincide. The cubic root of 156166680 is about 538.5129181532.

The spelling of 156166680 in words is "one hundred fifty-six million, one hundred sixty-six thousand, six hundred eighty".