10195720320 has 64 divisors (see below), whose sum is σ = 32498864640. Its totient is φ = 2718858240.

The previous prime is 10195720319. The next prime is 10195720349. The reversal of 10195720320 is 2302759101.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2653216 + ... + 2657055.

It is an arithmetic number, because the mean of its divisors is an integer number (507794760).

Almost surely, 2^10195720320 is an apocalyptic number.

10195720320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10195720320 is an abundant number, since it is smaller than the sum of its proper divisors (22303144320).

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

10195720320 is an equidigital number, since it uses as much as digits as its factorization.

10195720320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310293 (or 5310281 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 10195720320 in words is "ten billion, one hundred ninety-five million, seven hundred twenty thousand, three hundred twenty".