20860750080856 has 16 divisors (see below), whose sum is σ = 44701607316240. Its totient is φ = 8940321463200.

The previous prime is 20860750080817. The next prime is 20860750080857. The reversal of 20860750080856 is 65808005706802.

It is a happy number.

It is a super-2 number, since 2×20860750080856² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20860750080797 and 20860750080806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860750080857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186256697095 + ... + 186256697206.

It is an arithmetic number, because the mean of its divisors is an integer number (2793850457265).

Almost surely, 2^{20860750080856} is an apocalyptic number.

It is an amenable number.

20860750080856 is an abundant number, since it is smaller than the sum of its proper divisors (23840857235384).

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

20860750080856 is a wasteful number, since it uses less digits than its factorization.

20860750080856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372513394314 (or 372513394310 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 20860750080856 in words is "twenty trillion, eight hundred sixty billion, seven hundred fifty million, eighty thousand, eight hundred fifty-six".