18157300560 has 240 divisors, whose sum is σ = 69773034240. Its totient is φ = 4145264640.

The previous prime is 18157300559. The next prime is 18157300571. The reversal of 18157300560 is 6500375181.

18157300560 is a `hidden beast` number, since 1 + 81 + 573 + 0 + 0 + 5 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5688565 + ... + 5691755.

It is an arithmetic number, because the mean of its divisors is an integer number (290720976).

Almost surely, 2^18157300560 is an apocalyptic number.

18157300560 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 18157300560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34886517120).

18157300560 is an abundant number, since it is smaller than the sum of its proper divisors (51615733680).

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

18157300560 is a wasteful number, since it uses less digits than its factorization.

18157300560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346 (or 4337 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 18157300560 in words is "eighteen billion, one hundred fifty-seven million, three hundred thousand, five hundred sixty".