20620712609280 has 400 divisors, whose sum is σ = 84407865363360. Its totient is φ = 4713305407488.

The previous prime is 20620712609213. The next prime is 20620712609281. The reversal of 20620712609280 is 8290621702602.

20620712609280 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 0 + 7 + 12 + 609 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620712609281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5651625 + ... + 8554664.

Almost surely, 2^{20620712609280} is an apocalyptic number.

20620712609280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20620712609280 is an abundant number, since it is smaller than the sum of its proper divisors (63787152754080).

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

20620712609280 is an equidigital number, since it uses as much as digits as its factorization.

20620712609280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14206331 (or 14206306 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20620712609280 in words is "twenty trillion, six hundred twenty billion, seven hundred twelve million, six hundred nine thousand, two hundred eighty".