195494656 has 72 divisors (see below), whose sum is σ = 450007040. Its totient is φ = 83026944.

The previous prime is 195494647. The next prime is 195494699. The reversal of 195494656 is 656494591.

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, 227155 + ... + 228013.

Almost surely, 2^195494656 is an apocalyptic number.

195494656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195494656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225003520).

195494656 is an abundant number, since it is smaller than the sum of its proper divisors (254512384).

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

195494656 is an equidigital number, since it uses as much as digits as its factorization.

195494656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 995 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The square root of 195494656 is about 13981.9403517538. The cubic root of 195494656 is about 580.3789200512.

The spelling of 195494656 in words is "one hundred ninety-five million, four hundred ninety-four thousand, six hundred fifty-six".