128166431170 has 16 divisors (see below), whose sum is σ = 230749390080. Its totient is φ = 51255502704.

The previous prime is 128166431123. The next prime is 128166431207. The reversal of 128166431170 is 71134661821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1335012 + ... + 1427791.

It is an arithmetic number, because the mean of its divisors is an integer number (14421836880).

Almost surely, 2^128166431170 is an apocalyptic number.

128166431170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128166431170 is a deficient number, since it is larger than the sum of its proper divisors (102582958910).

128166431170 is a wasteful number, since it uses less digits than its factorization.

128166431170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767449.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 128166431170 in words is "one hundred twenty-eight billion, one hundred sixty-six million, four hundred thirty-one thousand, one hundred seventy".