220795730928 has 80 divisors (see below), whose sum is σ = 639688700160. Its totient is φ = 72910724544.

The previous prime is 220795730899. The next prime is 220795730929. The reversal of 220795730928 is 829037597022.

220795730928 is a `hidden beast` number, since 220 + 7 + 95 + 7 + 309 + 28 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220795730929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2342100 + ... + 2434547.

It is an arithmetic number, because the mean of its divisors is an integer number (7996108752).

Almost surely, 2^220795730928 is an apocalyptic number.

It is an amenable number.

220795730928 is an abundant number, since it is smaller than the sum of its proper divisors (418892969232).

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

220795730928 is a wasteful number, since it uses less digits than its factorization.

220795730928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776771 (or 4776759 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 220795730928 in words is "two hundred twenty billion, seven hundred ninety-five million, seven hundred thirty thousand, nine hundred twenty-eight".