18680078160 has 120 divisors (see below), whose sum is σ = 62936400384. Its totient is φ = 4965277440.

The previous prime is 18680078147. The next prime is 18680078167. The reversal of 18680078160 is 6187008681.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18680078167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182209 + ... + 265631.

Almost surely, 2^18680078160 is an apocalyptic number.

18680078160 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 18680078160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31468200192).

18680078160 is an abundant number, since it is smaller than the sum of its proper divisors (44256322224).

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

18680078160 is a wasteful number, since it uses less digits than its factorization.

18680078160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83753 (or 83744 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 18680078160 in words is "eighteen billion, six hundred eighty million, seventy-eight thousand, one hundred sixty".