166511196 has 18 divisors (see below), whose sum is σ = 420903392. Its totient is φ = 55503720.

The previous prime is 166511161. The next prime is 166511207. The reversal of 166511196 is 691115661.

166511196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4625311 = 166511196 / (1 + 6 + 6 + 5 + 1 + 1 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 166511196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2312620 + ... + 2312691.

Almost surely, 2^166511196 is an apocalyptic number.

It is an amenable number.

166511196 is an abundant number, since it is smaller than the sum of its proper divisors (254392196).

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

166511196 is a wasteful number, since it uses less digits than its factorization.

166511196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625321 (or 4625316 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 166511196 is about 12903.9217294588. The cubic root of 166511196 is about 550.1500373038.

The spelling of 166511196 in words is "one hundred sixty-six million, five hundred eleven thousand, one hundred ninety-six".