166375375250 has 32 divisors (see below), whose sum is σ = 355948235136. Its totient is φ = 57042985200.

The previous prime is 166375375249. The next prime is 166375375253. The reversal of 166375375250 is 52573573661.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (166375375253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47534072 + ... + 47537571.

It is an arithmetic number, because the mean of its divisors is an integer number (11123382348).

Almost surely, 2^166375375250 is an apocalyptic number.

166375375250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166375375250 is an abundant number, since it is smaller than the sum of its proper divisors (189572859886).

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

166375375250 is an equidigital number, since it uses as much as digits as its factorization.

166375375250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95071667 (or 95071657 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 50.

The spelling of 166375375250 in words is "one hundred sixty-six billion, three hundred seventy-five million, three hundred seventy-five thousand, two hundred fifty".