220816257423660 has 120 divisors (see below), whose sum is σ = 692720740219200. Its totient is φ = 58883318447616.

The previous prime is 220816257423653. The next prime is 220816257423677. The reversal of 220816257423660 is 66324752618022.

220816257423660 is a `hidden beast` number, since 2 + 2 + 0 + 8 + 1 + 6 + 2 + 574 + 2 + 3 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 220816257423597 and 220816257423606.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 95092116 + ... + 97386564.

It is an arithmetic number, because the mean of its divisors is an integer number (5772672835160).

Almost surely, 2^{220816257423660} is an apocalyptic number.

220816257423660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220816257423660 is an abundant number, since it is smaller than the sum of its proper divisors (471904482795540).

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

220816257423660 is a wasteful number, since it uses less digits than its factorization.

220816257423660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353877 (or 2353866 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 220816257423660 in words is "two hundred twenty trillion, eight hundred sixteen billion, two hundred fifty-seven million, four hundred twenty-three thousand, six hundred sixty".