220988959926 has 64 divisors (see below), whose sum is σ = 515548800000. Its totient is φ = 63124678848.

The previous prime is 220988959907. The next prime is 220988959943. The reversal of 220988959926 is 629959889022.

It is a super-2 number, since 2×220988959926² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10903450 + ... + 10923698.

It is an arithmetic number, because the mean of its divisors is an integer number (8055450000).

Almost surely, 2^220988959926 is an apocalyptic number.

220988959926 is an abundant number, since it is smaller than the sum of its proper divisors (294559840074).

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

220988959926 is a wasteful number, since it uses less digits than its factorization.

220988959926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25578 (or 25564 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 69.

The spelling of 220988959926 in words is "two hundred twenty billion, nine hundred eighty-eight million, nine hundred fifty-nine thousand, nine hundred twenty-six".