195723648 has 64 divisors (see below), whose sum is σ = 577666800. Its totient is φ = 65240064.

The previous prime is 195723643. The next prime is 195723691. The reversal of 195723648 is 846327591.

195723648 is a `hidden beast` number, since 1 + 9 + 572 + 36 + 48 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195723643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24861 + ... + 31772.

Almost surely, 2^195723648 is an apocalyptic number.

195723648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

195723648 is an abundant number, since it is smaller than the sum of its proper divisors (381943152).

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

195723648 is an equidigital number, since it uses as much as digits as its factorization.

195723648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56656 (or 56638 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 195723648 is about 13990.1268042859. The cubic root of 195723648 is about 580.6054399208.

It can be divided in two parts, 19572 and 3648, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 195723648 in words is "one hundred ninety-five million, seven hundred twenty-three thousand, six hundred forty-eight".