12620999797560 has 1152 divisors, whose sum is σ = 54936853171200. Its totient is φ = 2477971077120.

The previous prime is 12620999797543. The next prime is 12620999797573. The reversal of 12620999797560 is 6579799902621.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1463639409 + ... + 1463648031.

It is an arithmetic number, because the mean of its divisors is an integer number (47688240600).

Almost surely, 2^{12620999797560} is an apocalyptic number.

12620999797560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12620999797560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27468426585600).

12620999797560 is an abundant number, since it is smaller than the sum of its proper divisors (42315853373640).

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

12620999797560 is a wasteful number, since it uses less digits than its factorization.

12620999797560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081 (or 9067 counting only the distinct ones).

The product of its (nonzero) digits is 231472080, while the sum is 72.

The spelling of 12620999797560 in words is "twelve trillion, six hundred twenty billion, nine hundred ninety-nine million, seven hundred ninety-seven thousand, five hundred sixty".