18605955960 has 192 divisors, whose sum is σ = 66010089600. Its totient is φ = 4700405376.

The previous prime is 18605955917. The next prime is 18605955971. The reversal of 18605955960 is 6955950681.

18605955960 is a `hidden beast` number, since 1 + 86 + 0 + 5 + 9 + 559 + 6 + 0 = 666.

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 = 18605955897 and 18605955906.

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, 134307 + ... + 235053.

It is an arithmetic number, because the mean of its divisors is an integer number (343802550).

Almost surely, 2^18605955960 is an apocalyptic number.

18605955960 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 18605955960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33005044800).

18605955960 is an abundant number, since it is smaller than the sum of its proper divisors (47404133640).

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

18605955960 is a wasteful number, since it uses less digits than its factorization.

18605955960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100792 (or 100776 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 54.

The spelling of 18605955960 in words is "eighteen billion, six hundred five million, nine hundred fifty-five thousand, nine hundred sixty".