166325263 has 8 divisors (see below), whose sum is σ = 189656208. Its totient is φ = 144499584.

The previous prime is 166325227. The next prime is 166325267. The reversal of 166325263 is 362523661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166325263 - 2⁹ = 166324751 is a prime.

It is a super-2 number, since 2×166325263² = 55328186224038338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166325267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376081 + ... + 376522.

It is an arithmetic number, because the mean of its divisors is an integer number (23707026).

Almost surely, 2^166325263 is an apocalyptic number.

166325263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166325263 is a deficient number, since it is larger than the sum of its proper divisors (23330945).

166325263 is a wasteful number, since it uses less digits than its factorization.

166325263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752633.

The product of its digits is 38880, while the sum is 34.

The square root of 166325263 is about 12896.7152019419. The cubic root of 166325263 is about 549.9451879261.

The spelling of 166325263 in words is "one hundred sixty-six million, three hundred twenty-five thousand, two hundred sixty-three".