82181588032 has 56 divisors (see below), whose sum is σ = 163931656896. Its totient is φ = 40876482048.

The previous prime is 82181588009. The next prime is 82181588081. The reversal of 82181588032 is 23088518128.

It is a super-2 number, since 2×82181588032² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11714958 + ... + 11721970.

It is an arithmetic number, because the mean of its divisors is an integer number (2927351016).

Almost surely, 2^82181588032 is an apocalyptic number.

It is an amenable number.

82181588032 is a deficient number, since it is larger than the sum of its proper divisors (81750068864).

82181588032 is a wasteful number, since it uses less digits than its factorization.

82181588032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955 (or 7945 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 46.

The spelling of 82181588032 in words is "eighty-two billion, one hundred eighty-one million, five hundred eighty-eight thousand, thirty-two".