18372920110100 has 54 divisors (see below), whose sum is σ = 40267892157402. Its totient is φ = 7276403600000.

The previous prime is 18372920110009. The next prime is 18372920110121. The reversal of 18372920110100 is 101102927381.

It can be written as a sum of positive squares in 9 ways, for example, as 1870362582544 + 16502557527556 = 1367612^2 + 4062334^2 .

It is a super-2 number, since 2×18372920110100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7985351 + ... + 10025550.

Almost surely, 2^{18372920110100} is an apocalyptic number.

18372920110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18372920110100 is an abundant number, since it is smaller than the sum of its proper divisors (21894972047302).

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

18372920110100 is a wasteful number, since it uses less digits than its factorization.

18372920110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18011117 (or 18011009 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 18372920110100 in words is "eighteen trillion, three hundred seventy-two billion, nine hundred twenty million, one hundred ten thousand, one hundred".