220813494681420 has 36 divisors (see below), whose sum is σ = 669800933867520. Its totient is φ = 58883598581664.

The previous prime is 220813494681401. The next prime is 220813494681431. The reversal of 220813494681420 is 24186494318022.

220813494681420 is a `hidden beast` number, since 2 + 2 + 0 + 8 + 1 + 3 + 494 + 6 + 8 + 142 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613370818380 + ... + 613370818739.

It is an arithmetic number, because the mean of its divisors is an integer number (18605581496320).

Almost surely, 2^{220813494681420} is an apocalyptic number.

220813494681420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220813494681420 is an abundant number, since it is smaller than the sum of its proper divisors (448987439186100).

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

220813494681420 is a wasteful number, since it uses less digits than its factorization.

220813494681420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226741637134 (or 1226741637129 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 220813494681420 in words is "two hundred twenty trillion, eight hundred thirteen billion, four hundred ninety-four million, six hundred eighty-one thousand, four hundred twenty".