166182465770 has 72 divisors (see below), whose sum is σ = 308048807052. Its totient is φ = 64542804480.

The previous prime is 166182465733. The next prime is 166182465797. The reversal of 166182465770 is 77564281661.

It can be written as a sum of positive squares in 6 ways, for example, as 13763278489 + 152419187281 = 117317^2 + 390409^2 .

It is a super-2 number, since 2×166182465770² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 918135080 + ... + 918135260.

Almost surely, 2^166182465770 is an apocalyptic number.

166182465770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166182465770 is a deficient number, since it is larger than the sum of its proper divisors (141866341282).

166182465770 is an equidigital number, since it uses as much as digits as its factorization.

166182465770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 166182465770 in words is "one hundred sixty-six billion, one hundred eighty-two million, four hundred sixty-five thousand, seven hundred seventy".