166186150752 has 24 divisors (see below), whose sum is σ = 436238645976. Its totient is φ = 55395383552.

The previous prime is 166186150751. The next prime is 166186150787. The reversal of 166186150752 is 257051681661.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166186150751) 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, 865552773 + ... + 865552964.

It is an arithmetic number, because the mean of its divisors is an integer number (18176610249).

Almost surely, 2^166186150752 is an apocalyptic number.

166186150752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166186150752 is an abundant number, since it is smaller than the sum of its proper divisors (270052495224).

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

166186150752 is a wasteful number, since it uses less digits than its factorization.

166186150752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731105750 (or 1731105742 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 166186150752 in words is "one hundred sixty-six billion, one hundred eighty-six million, one hundred fifty thousand, seven hundred fifty-two".