12620075563818 has 48 divisors (see below), whose sum is σ = 28309506376320. Its totient is φ = 4058312268192.

The previous prime is 12620075563801. The next prime is 12620075563831. The reversal of 12620075563818 is 81836557002621.

12620075563818 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 0 + 0 + 7 + 556 + 3 + 81 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9245646 + ... + 10522457.

It is an arithmetic number, because the mean of its divisors is an integer number (589781382840).

Almost surely, 2^{12620075563818} is an apocalyptic number.

12620075563818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12620075563818 is an abundant number, since it is smaller than the sum of its proper divisors (15689430812502).

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

12620075563818 is a wasteful number, since it uses less digits than its factorization.

12620075563818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19769363 (or 19769360 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 12620075563818 in words is "twelve trillion, six hundred twenty billion, seventy-five million, five hundred sixty-three thousand, eight hundred eighteen".