182221213664 has 48 divisors (see below), whose sum is σ = 412452891648. Its totient is φ = 77627156352.

The previous prime is 182221213631. The next prime is 182221213687. The reversal of 182221213664 is 466312122281.

It is a super-2 number, since 2×182221213664² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398184 + ... + 2472999.

It is an arithmetic number, because the mean of its divisors is an integer number (8592768576).

Almost surely, 2^182221213664 is an apocalyptic number.

182221213664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

182221213664 is an abundant number, since it is smaller than the sum of its proper divisors (230231677984).

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

182221213664 is a wasteful number, since it uses less digits than its factorization.

182221213664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871367 (or 4871359 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The spelling of 182221213664 in words is "one hundred eighty-two billion, two hundred twenty-one million, two hundred thirteen thousand, six hundred sixty-four".