18674168558 has 16 divisors (see below), whose sum is σ = 28294485840. Its totient is φ = 9242712000.

The previous prime is 18674168549. The next prime is 18674168561. The reversal of 18674168558 is 85586147681.

It is a junction number, because it is equal to n+sod(n) for n = 18674168497 and 18674168506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831298 + ... + 1841466.

It is an arithmetic number, because the mean of its divisors is an integer number (1768405365).

Almost surely, 2^18674168558 is an apocalyptic number.

18674168558 is a deficient number, since it is larger than the sum of its proper divisors (9620317282).

18674168558 is a wasteful number, since it uses less digits than its factorization.

18674168558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19363.

The product of its digits is 12902400, while the sum is 59.

The spelling of 18674168558 in words is "eighteen billion, six hundred seventy-four million, one hundred sixty-eight thousand, five hundred fifty-eight".