20683276680 has 64 divisors (see below), whose sum is σ = 67690728000. Its totient is φ = 5014127360.

The previous prime is 20683276639. The next prime is 20683276687. The reversal of 20683276680 is 8667238602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20683276687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7833255 + ... + 7835894.

It is an arithmetic number, because the mean of its divisors is an integer number (1057667625).

Almost surely, 2^20683276680 is an apocalyptic number.

20683276680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20683276680 is an abundant number, since it is smaller than the sum of its proper divisors (47007451320).

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

20683276680 is a wasteful number, since it uses less digits than its factorization.

20683276680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15669174 (or 15669170 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 20683276680 in words is "twenty billion, six hundred eighty-three million, two hundred seventy-six thousand, six hundred eighty".