166332233625 has 16 divisors (see below), whose sum is σ = 276776837376. Its totient is φ = 88710524400.

The previous prime is 166332233609. The next prime is 166332233647. The reversal of 166332233625 is 526332233661.

It is not a de Polignac number, because 166332233625 - 2⁴ = 166332233609 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221775937 + ... + 221776686.

It is an arithmetic number, because the mean of its divisors is an integer number (17298552336).

Almost surely, 2^166332233625 is an apocalyptic number.

166332233625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166332233625 is a deficient number, since it is larger than the sum of its proper divisors (110444603751).

166332233625 is an equidigital number, since it uses as much as digits as its factorization.

166332233625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443552641 (or 443552631 counting only the distinct ones).

The product of its digits is 699840, while the sum is 42.

The spelling of 166332233625 in words is "one hundred sixty-six billion, three hundred thirty-two million, two hundred thirty-three thousand, six hundred twenty-five".