220655565949748 has 12 divisors (see below), whose sum is σ = 386147363159460. Its totient is φ = 110327747904192.

The previous prime is 220655565949673. The next prime is 220655565949757. The reversal of 220655565949748 is 847949565556022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 149200801589284 + 71454764360464 = 12214778^2 + 8453092^2 .

It is a super-2 number, since 2×220655565949748² (a number of 29 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 3 ways as a sum of consecutive naturals, for example, 9720440 + ... + 23147312.

It is an arithmetic number, because the mean of its divisors is an integer number (32178946929955).

Almost surely, 2^{220655565949748} is an apocalyptic number.

It is an amenable number.

220655565949748 is a deficient number, since it is larger than the sum of its proper divisors (165491797209712).

220655565949748 is a wasteful number, since it uses less digits than its factorization.

220655565949748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17535346 (or 17535344 counting only the distinct ones).

The product of its (nonzero) digits is 6531840000, while the sum is 77.

The spelling of 220655565949748 in words is "two hundred twenty trillion, six hundred fifty-five billion, five hundred sixty-five million, nine hundred forty-nine thousand, seven hundred forty-eight".