28660183320 has 32 divisors (see below), whose sum is σ = 85980550320. Its totient is φ = 7642715520.

The previous prime is 28660183309. The next prime is 28660183327. The reversal of 28660183320 is 2338106682.

It is a super-2 number, since 2×28660183320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28660183327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119417311 + ... + 119417550.

Almost surely, 2^28660183320 is an apocalyptic number.

28660183320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28660183320 is an abundant number, since it is smaller than the sum of its proper divisors (57320367000).

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

28660183320 is a wasteful number, since it uses less digits than its factorization.

28660183320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238834875 (or 238834871 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 28660183320 in words is "twenty-eight billion, six hundred sixty million, one hundred eighty-three thousand, three hundred twenty".