18010133680 has 320 divisors, whose sum is σ = 53519717376. Its totient is φ = 5519923200.

The previous prime is 18010133629. The next prime is 18010133699. The reversal of 18010133680 is 8633101081.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54411115 + ... + 54411445.

Almost surely, 2^18010133680 is an apocalyptic number.

18010133680 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 18010133680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26759858688).

18010133680 is an abundant number, since it is smaller than the sum of its proper divisors (35509583696).

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

18010133680 is a wasteful number, since it uses less digits than its factorization.

18010133680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 18010133680 in words is "eighteen billion, ten million, one hundred thirty-three thousand, six hundred eighty".