166457751168 has 64 divisors (see below), whose sum is σ = 465424653600. Its totient is φ = 52565603328.

The previous prime is 166457751151. The next prime is 166457751169. The reversal of 166457751168 is 861157754661.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (166457751169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11400171 + ... + 11414762.

Almost surely, 2^166457751168 is an apocalyptic number.

It is an amenable number.

166457751168 is an abundant number, since it is smaller than the sum of its proper divisors (298966902432).

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

166457751168 is a wasteful number, since it uses less digits than its factorization.

166457751168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814969 (or 22814957 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 57.

The spelling of 166457751168 in words is "one hundred sixty-six billion, four hundred fifty-seven million, seven hundred fifty-one thousand, one hundred sixty-eight".