18557675136 has 1152 divisors, whose sum is σ = 77456433600. Its totient is φ = 4215214080.

The previous prime is 18557675113. The next prime is 18557675141. The reversal of 18557675136 is 63157675581.

It is a happy number.

18557675136 is a `hidden beast` number, since 1 + 8 + 55 + 76 + 7 + 513 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 976719735 + ... + 976719753.

Almost surely, 2^18557675136 is an apocalyptic number.

18557675136 is a gapful number since it is divisible by the number (16) 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 18557675136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38728216800).

18557675136 is an abundant number, since it is smaller than the sum of its proper divisors (58898758464).

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

18557675136 is a wasteful number, since it uses less digits than its factorization.

18557675136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 55 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 18557675136 in words is "eighteen billion, five hundred fifty-seven million, six hundred seventy-five thousand, one hundred thirty-six".