12653420560 has 80 divisors (see below), whose sum is σ = 33489106560. Its totient is φ = 4401182720.

The previous prime is 12653420539. The next prime is 12653420609. The reversal of 12653420560 is 6502435621.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292345 + ... + 332824.

It is an arithmetic number, because the mean of its divisors is an integer number (418613832).

Almost surely, 2^12653420560 is an apocalyptic number.

12653420560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12653420560 is an abundant number, since it is smaller than the sum of its proper divisors (20835686000).

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

12653420560 is a wasteful number, since it uses less digits than its factorization.

12653420560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625216 (or 625210 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

It can be divided in two parts, 1265 and 3420560, that multiplied together give a square (4327008400 = 65780²).

The spelling of 12653420560 in words is "twelve billion, six hundred fifty-three million, four hundred twenty thousand, five hundred sixty".