166727660 has 48 divisors (see below), whose sum is σ = 402071040. Its totient is φ = 57435840.

The previous prime is 166727657. The next prime is 166727677. The reversal of 166727660 is 66727661.

It is a super-2 number, since 2×166727660² = 55596225218151200, which contains 22 as substring.

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, 15764 + ... + 24123.

It is an arithmetic number, because the mean of its divisors is an integer number (8376480).

Almost surely, 2^166727660 is an apocalyptic number.

166727660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166727660 is an abundant number, since it is smaller than the sum of its proper divisors (235343380).

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

166727660 is a wasteful number, since it uses less digits than its factorization.

166727660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39926 (or 39924 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 166727660 is about 12912.3065329166. The cubic root of 166727660 is about 550.3883318114.

Subtracting from 166727660 its reverse (66727661), we obtain a palindrome (99999999).

The spelling of 166727660 in words is "one hundred sixty-six million, seven hundred twenty-seven thousand, six hundred sixty".