20842360206756 has 48 divisors (see below), whose sum is σ = 53117901119808. Its totient is φ = 6308173801600.

The previous prime is 20842360206743. The next prime is 20842360206779. The reversal of 20842360206756 is 65760206324802.

It is a super-2 number, since 2×20842360206756² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20842360206699 and 20842360206708.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96052815 + ... + 96269558.

It is an arithmetic number, because the mean of its divisors is an integer number (1106622939996).

Almost surely, 2^{20842360206756} is an apocalyptic number.

It is an amenable number.

20842360206756 is an abundant number, since it is smaller than the sum of its proper divisors (32275540913052).

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

20842360206756 is a wasteful number, since it uses less digits than its factorization.

20842360206756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192323212 (or 192323210 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 20842360206756 in words is "twenty trillion, eight hundred forty-two billion, three hundred sixty million, two hundred six thousand, seven hundred fifty-six".