18605065976 has 48 divisors (see below), whose sum is σ = 42344292240. Its totient is φ = 7626917760.

The previous prime is 18605065933. The next prime is 18605066009. The reversal of 18605065976 is 67956050681.

It is a super-2 number, since 2×18605065976² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022765 + ... + 1040796.

It is an arithmetic number, because the mean of its divisors is an integer number (882172755).

Almost surely, 2^18605065976 is an apocalyptic number.

It is an amenable number.

18605065976 is an abundant number, since it is smaller than the sum of its proper divisors (23739226264).

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

18605065976 is a wasteful number, since it uses less digits than its factorization.

18605065976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063604 (or 2063593 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 18605065976 in words is "eighteen billion, six hundred five million, sixty-five thousand, nine hundred seventy-six".