20412605202660 has 72 divisors (see below), whose sum is σ = 67547166313536. Its totient is φ = 4948510351680.

The previous prime is 20412605202643. The next prime is 20412605202673. The reversal of 20412605202660 is 6620250621402.

20412605202660 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 2 + 605 + 20 + 26 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 5154696304 + ... + 5154700263.

It is an arithmetic number, because the mean of its divisors is an integer number (938155087688).

Almost surely, 2^{20412605202660} is an apocalyptic number.

20412605202660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20412605202660 is an abundant number, since it is smaller than the sum of its proper divisors (47134561110876).

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

20412605202660 is a wasteful number, since it uses less digits than its factorization.

20412605202660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10309396593 (or 10309396588 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 20412605202660 in words is "twenty trillion, four hundred twelve billion, six hundred five million, two hundred two thousand, six hundred sixty".