20684654060 has 48 divisors (see below), whose sum is σ = 50384135424. Its totient is φ = 6986029248.

The previous prime is 20684654059. The next prime is 20684654099. The reversal of 20684654060 is 6045648602.

It is a junction number, because it is equal to n+sod(n) for n = 20684653999 and 20684654017.

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, 1093214 + ... + 1111973.

It is an arithmetic number, because the mean of its divisors is an integer number (1049669488).

Almost surely, 2^20684654060 is an apocalyptic number.

20684654060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20684654060 is an abundant number, since it is smaller than the sum of its proper divisors (29699481364).

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

20684654060 is a wasteful number, since it uses less digits than its factorization.

20684654060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205270 (or 2205268 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 20684654060 in words is "twenty billion, six hundred eighty-four million, six hundred fifty-four thousand, sixty".