166920036 has 12 divisors (see below), whose sum is σ = 389480112. Its totient is φ = 55640008.

The previous prime is 166920031. The next prime is 166920043. The reversal of 166920036 is 630029661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 166919979 and 166920006.

It is not an unprimeable number, because it can be changed into a prime (166920031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6954990 + ... + 6955013.

It is an arithmetic number, because the mean of its divisors is an integer number (32456676).

Almost surely, 2^166920036 is an apocalyptic number.

It is an amenable number.

166920036 is an abundant number, since it is smaller than the sum of its proper divisors (222560076).

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

166920036 is a wasteful number, since it uses less digits than its factorization.

166920036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13910010 (or 13910008 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 166920036 is about 12919.7537128229. The cubic root of 166920036 is about 550.5999359899.

Adding to 166920036 its reverse (630029661), we get a palindrome (796949697).

The spelling of 166920036 in words is "one hundred sixty-six million, nine hundred twenty thousand, thirty-six".