220420165463664 has 80 divisors (see below), whose sum is σ = 589581248149920. Its totient is φ = 70876313625600.

The previous prime is 220420165463657. The next prime is 220420165463671. The reversal of 220420165463664 is 466364561024022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220420165463657) and next prime (220420165463671).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69325987 + ... + 72435714.

It is an arithmetic number, because the mean of its divisors is an integer number (7369765601874).

Almost surely, 2^{220420165463664} is an apocalyptic number.

220420165463664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220420165463664 is an abundant number, since it is smaller than the sum of its proper divisors (369161082686256).

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

220420165463664 is a wasteful number, since it uses less digits than its factorization.

220420165463664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141762858 (or 141762852 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 51.

The spelling of 220420165463664 in words is "two hundred twenty trillion, four hundred twenty billion, one hundred sixty-five million, four hundred sixty-three thousand, six hundred sixty-four".