166563036 has 18 divisors (see below), whose sum is σ = 421034432. Its totient is φ = 55521000.

The previous prime is 166563029. The next prime is 166563043. The reversal of 166563036 is 630365661.

It is a happy number.

166563036 is a `hidden beast` number, since 1 + 66 + 563 + 0 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (166563029) and next prime (166563043).

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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: 4626751 = 166563036 / (1 + 6 + 6 + 5 + 6 + 3 + 0 + 3 + 6).

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, 2313340 + ... + 2313411.

Almost surely, 2^166563036 is an apocalyptic number.

It is an amenable number.

166563036 is an abundant number, since it is smaller than the sum of its proper divisors (254471396).

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

166563036 is a wasteful number, since it uses less digits than its factorization.

166563036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626761 (or 4626756 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 166563036 is about 12905.9302648046. The cubic root of 166563036 is about 550.2071241933.

The spelling of 166563036 in words is "one hundred sixty-six million, five hundred sixty-three thousand, thirty-six".