18283361668 has 72 divisors (see below), whose sum is σ = 37923953760. Its totient is φ = 7645397760.

The previous prime is 18283361659. The next prime is 18283361689. The reversal of 18283361668 is 86616338281.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2278848 + ... + 2286856.

It is an arithmetic number, because the mean of its divisors is an integer number (526721580).

Almost surely, 2^18283361668 is an apocalyptic number.

It is an amenable number.

18283361668 is an abundant number, since it is smaller than the sum of its proper divisors (19640592092).

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

18283361668 is a wasteful number, since it uses less digits than its factorization.

18283361668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8357 (or 8342 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The spelling of 18283361668 in words is "eighteen billion, two hundred eighty-three million, three hundred sixty-one thousand, six hundred sixty-eight".