20012620873105 has 24 divisors (see below), whose sum is σ = 28183206201192. Its totient is φ = 13601498061312.

The previous prime is 20012620873099. The next prime is 20012620873111. The reversal of 20012620873105 is 50137802621002.

It is an interprime number because it is at equal distance from previous prime (20012620873099) and next prime (20012620873111).

It can be written as a sum of positive squares in 4 ways, for example, as 37880058384 + 19974740814721 = 194628^2 + 4469311^2 .

It is not a de Polignac number, because 20012620873105 - 2³ = 20012620873097 is a prime.

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, 361406682 + ... + 361462051.

It is an arithmetic number, because the mean of its divisors is an integer number (1174300258383).

Almost surely, 2^{20012620873105} is an apocalyptic number.

It is an amenable number.

20012620873105 is a deficient number, since it is larger than the sum of its proper divisors (8170585328087).

20012620873105 is a wasteful number, since it uses less digits than its factorization.

20012620873105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722868865 (or 722868858 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 20012620873105 in words is "twenty trillion, twelve billion, six hundred twenty million, eight hundred seventy-three thousand, one hundred five".