166488398 has 16 divisors (see below), whose sum is σ = 264866976. Its totient is φ = 78318240.

The previous prime is 166488379. The next prime is 166488401. The reversal of 166488398 is 893884661.

It is a congruent number.

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, 26861 + ... + 32472.

It is an arithmetic number, because the mean of its divisors is an integer number (16554186).

Almost surely, 2^166488398 is an apocalyptic number.

166488398 is a deficient number, since it is larger than the sum of its proper divisors (98378578).

166488398 is a wasteful number, since it uses less digits than its factorization.

166488398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59419.

The product of its digits is 1990656, while the sum is 53.

The square root of 166488398 is about 12903.0383243638. The cubic root of 166488398 is about 550.1249280953.

The spelling of 166488398 in words is "one hundred sixty-six million, four hundred eighty-eight thousand, three hundred ninety-eight".