220819798756 has 12 divisors (see below), whose sum is σ = 387280241068. Its totient is φ = 110168301312.

The previous prime is 220819798687. The next prime is 220819798783. The reversal of 220819798756 is 657897918022.

It can be written as a sum of positive squares in 2 ways, for example, as 205743888100 + 15075910656 = 453590^2 + 122784^2 .

It is a super-2 number, since 2×220819798756² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60397461 + ... + 60401116.

Almost surely, 2^220819798756 is an apocalyptic number.

It is an amenable number.

220819798756 is a deficient number, since it is larger than the sum of its proper divisors (166460442312).

220819798756 is a wasteful number, since it uses less digits than its factorization.

220819798756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120799038 (or 120799036 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 64.

The spelling of 220819798756 in words is "two hundred twenty billion, eight hundred nineteen million, seven hundred ninety-eight thousand, seven hundred fifty-six".