220816257423606 has 64 divisors (see below), whose sum is σ = 528507849139200. Its totient is φ = 67935918470688.

The previous prime is 220816257423589. The next prime is 220816257423613. The reversal of 220816257423606 is 606324752618022.

220816257423606 is a `hidden beast` number, since 2 + 2 + 0 + 8 + 1 + 6 + 2 + 5 + 7 + 4 + 23 + 606 = 666.

220816257423606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11138676 + ... + 23784503.

It is an arithmetic number, because the mean of its divisors is an integer number (8257935142800).

Almost surely, 2^{220816257423606} is an apocalyptic number.

220816257423606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

220816257423606 is an abundant number, since it is smaller than the sum of its proper divisors (307691591715594).

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

220816257423606 is a wasteful number, since it uses less digits than its factorization.

220816257423606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34932210 (or 34932204 counting only the distinct ones).

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

The spelling of 220816257423606 in words is "two hundred twenty trillion, eight hundred sixteen billion, two hundred fifty-seven million, four hundred twenty-three thousand, six hundred six".