18699932160 has 800 divisors, whose sum is σ = 82516718592. Its totient is φ = 3941498880.

The previous prime is 18699932137. The next prime is 18699932161. The reversal of 18699932160 is 6123999681.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18699932097 and 18699932106.

It is not an unprimeable number, because it can be changed into a prime (18699932161) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18869265 + ... + 18870255.

Almost surely, 2^18699932160 is an apocalyptic number.

18699932160 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 18699932160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41258359296).

18699932160 is an abundant number, since it is smaller than the sum of its proper divisors (63816786432).

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

18699932160 is an equidigital number, since it uses as much as digits as its factorization.

18699932160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 18699932160 in words is "eighteen billion, six hundred ninety-nine million, nine hundred thirty-two thousand, one hundred sixty".