127166864 has 20 divisors (see below), whose sum is σ = 268784880. Its totient is φ = 57803040.

The previous prime is 127166863. The next prime is 127166869. The reversal of 127166864 is 468661721.

It is a super-2 number, since 2×127166864² = 32342822599188992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127166861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361094 + ... + 361445.

It is an arithmetic number, because the mean of its divisors is an integer number (13439244).

Almost surely, 2^127166864 is an apocalyptic number.

It is an amenable number.

127166864 is an abundant number, since it is smaller than the sum of its proper divisors (141618016).

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

127166864 is a wasteful number, since it uses less digits than its factorization.

127166864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722558 (or 722552 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 127166864 is about 11276.8286321997. The cubic root of 127166864 is about 502.8726165422.

The spelling of 127166864 in words is "one hundred twenty-seven million, one hundred sixty-six thousand, eight hundred sixty-four".