10902320720 has 20 divisors (see below), whose sum is σ = 25347895860. Its totient is φ = 4360928256.

The previous prime is 10902320717. The next prime is 10902320747. The reversal of 10902320720 is 2702320901.

It can be written as a sum of positive squares in 2 ways, for example, as 5976526864 + 4925793856 = 77308^2 + 70184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 10902320720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68139425 + ... + 68139584.

It is an arithmetic number, because the mean of its divisors is an integer number (1267394793).

Almost surely, 2^10902320720 is an apocalyptic number.

10902320720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10902320720 is an abundant number, since it is smaller than the sum of its proper divisors (14445575140).

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

10902320720 is a wasteful number, since it uses less digits than its factorization.

10902320720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136279022 (or 136279016 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 10902320720 in words is "ten billion, nine hundred two million, three hundred twenty thousand, seven hundred twenty".