18100630080 has 252 divisors, whose sum is σ = 67417957620. Its totient is φ = 4455419904.

The previous prime is 18100630063. The next prime is 18100630139. The reversal of 18100630080 is 8003600181.

18100630080 is a `hidden beast` number, since 18 + 10 + 0 + 630 + 0 + 8 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1029639744 + 17070990336 = 32088^2 + 130656^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 468126 + ... + 505314.

Almost surely, 2^18100630080 is an apocalyptic number.

18100630080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18100630080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33708978810).

18100630080 is an abundant number, since it is smaller than the sum of its proper divisors (49317327540).

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

18100630080 is a wasteful number, since it uses less digits than its factorization.

18100630080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37238 (or 37212 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 18100630080 in words is "eighteen billion, one hundred million, six hundred thirty thousand, eighty".