195664130 has 16 divisors (see below), whose sum is σ = 352370304. Its totient is φ = 78226800.

The previous prime is 195664121. The next prime is 195664141. The reversal of 195664130 is 31466591.

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, 25079 + ... + 31941.

It is an arithmetic number, because the mean of its divisors is an integer number (22023144).

Almost surely, 2^195664130 is an apocalyptic number.

195664130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195664130 is a deficient number, since it is larger than the sum of its proper divisors (156706174).

195664130 is a wasteful number, since it uses less digits than its factorization.

195664130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9721.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 195664130 is about 13987.9994995711. Note that the first 3 decimals coincide. The cubic root of 195664130 is about 580.5465814600.

The spelling of 195664130 in words is "one hundred ninety-five million, six hundred sixty-four thousand, one hundred thirty".