166155836 has 48 divisors (see below), whose sum is σ = 381615360. Its totient is φ = 61326720.

The previous prime is 166155799. The next prime is 166155839. The reversal of 166155836 is 638551661.

It is a junction number, because it is equal to n+sod(n) for n = 166155793 and 166155802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166155839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8345 + ... + 20048.

It is an arithmetic number, because the mean of its divisors is an integer number (7950320).

Almost surely, 2^166155836 is an apocalyptic number.

It is an amenable number.

166155836 is an abundant number, since it is smaller than the sum of its proper divisors (215459524).

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

166155836 is a wasteful number, since it uses less digits than its factorization.

166155836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28434 (or 28432 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 166155836 is about 12890.1449177269. The cubic root of 166155836 is about 549.7583908489.

The spelling of 166155836 in words is "one hundred sixty-six million, one hundred fifty-five thousand, eight hundred thirty-six".