195431299560 has 128 divisors (see below), whose sum is σ = 744500217600. Its totient is φ = 44670009600.

The previous prime is 195431299537. The next prime is 195431299571. The reversal of 195431299560 is 65992134591.

195431299560 is a `hidden beast` number, since 1 + 9 + 54 + 3 + 1 + 29 + 9 + 560 = 666.

195431299560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 195431299497 and 195431299506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12917791 + ... + 12932910.

It is an arithmetic number, because the mean of its divisors is an integer number (5816407950).

Almost surely, 2^195431299560 is an apocalyptic number.

195431299560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195431299560 is an abundant number, since it is smaller than the sum of its proper divisors (549068918040).

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

195431299560 is a wasteful number, since it uses less digits than its factorization.

195431299560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25850728 (or 25850718 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 195431299560 in words is "one hundred ninety-five billion, four hundred thirty-one million, two hundred ninety-nine thousand, five hundred sixty".