18100082580 has 96 divisors (see below), whose sum is σ = 54803298816. Its totient is φ = 4446099456.

The previous prime is 18100082543. The next prime is 18100082593. The reversal of 18100082580 is 8528000181.

It is a super-2 number, since 2×18100082580² (a number of 21 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 31 ways as a sum of consecutive naturals, for example, 140839 + ... + 236718.

It is an arithmetic number, because the mean of its divisors is an integer number (570867696).

Almost surely, 2^18100082580 is an apocalyptic number.

18100082580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18100082580 is an abundant number, since it is smaller than the sum of its proper divisors (36703216236).

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

18100082580 is a wasteful number, since it uses less digits than its factorization.

18100082580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377633 (or 377631 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The spelling of 18100082580 in words is "eighteen billion, one hundred million, eighty-two thousand, five hundred eighty".