182020181820 has 24 divisors (see below), whose sum is σ = 509656509264. Its totient is φ = 48538715136.

The previous prime is 182020181813. The next prime is 182020181867. The reversal of 182020181820 is 28181020281.

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, 1516834789 + ... + 1516834908.

It is an arithmetic number, because the mean of its divisors is an integer number (21235687886).

Almost surely, 2^182020181820 is an apocalyptic number.

182020181820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

182020181820 is an abundant number, since it is smaller than the sum of its proper divisors (327636327444).

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

182020181820 is a wasteful number, since it uses less digits than its factorization.

182020181820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033669709 (or 3033669707 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 33.

The spelling of 182020181820 in words is "one hundred eighty-two billion, twenty million, one hundred eighty-one thousand, eight hundred twenty".