166457930000 has 50 divisors (see below), whose sum is σ = 403011318534. Its totient is φ = 66583168000.

The previous prime is 166457929961. The next prime is 166457930003. The reversal of 166457930000 is 39754661.

It can be written as a sum of positive squares in 5 ways, for example, as 46600720384 + 119857209616 = 215872^2 + 346204^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a self number, because there is not a number n which added to its sum of digits gives 166457930000.

It is not an unprimeable number, because it can be changed into a prime (166457930003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8312897 + ... + 8332896.

Almost surely, 2^166457930000 is an apocalyptic number.

166457930000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166457930000 is an abundant number, since it is smaller than the sum of its proper divisors (236553388534).

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

166457930000 is an equidigital number, since it uses as much as digits as its factorization.

166457930000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16645821 (or 16645800 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 166457930000 in words is "one hundred sixty-six billion, four hundred fifty-seven million, nine hundred thirty thousand".