18206596220 has 24 divisors (see below), whose sum is σ = 39896194464. Its totient is φ = 6966001856.

The previous prime is 18206596211. The next prime is 18206596241. The reversal of 18206596220 is 2269560281.

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, 19789319 + ... + 19790238.

It is an arithmetic number, because the mean of its divisors is an integer number (1662341436).

Almost surely, 2^18206596220 is an apocalyptic number.

18206596220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18206596220 is an abundant number, since it is smaller than the sum of its proper divisors (21689598244).

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

18206596220 is a wasteful number, since it uses less digits than its factorization.

18206596220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39579589 (or 39579587 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18206596220 in words is "eighteen billion, two hundred six million, five hundred ninety-six thousand, two hundred twenty".