195924663648 has 168 divisors, whose sum is σ = 660943937808. Its totient is φ = 55978428672.

The previous prime is 195924663631. The next prime is 195924663659. The reversal of 195924663648 is 846366429591.

195924663648 is a `hidden beast` number, since 1 + 9 + 592 + 4 + 6 + 6 + 36 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 436611 + ... + 763202.

It is an arithmetic number, because the mean of its divisors is an integer number (3934190106).

Almost surely, 2^195924663648 is an apocalyptic number.

195924663648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

195924663648 is an abundant number, since it is smaller than the sum of its proper divisors (465019274160).

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

195924663648 is an equidigital number, since it uses as much as digits as its factorization.

195924663648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199848 (or 1199825 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 63.

The spelling of 195924663648 in words is "one hundred ninety-five billion, nine hundred twenty-four million, six hundred sixty-three thousand, six hundred forty-eight".