220345525435656 has 32 divisors (see below), whose sum is σ = 550946812904640. Its totient is φ = 73437441903168.

The previous prime is 220345525435603. The next prime is 220345525435727. The reversal of 220345525435656 is 656534525543022.

It is a junction number, because it is equal to n+sod(n) for n = 220345525435596 and 220345525435605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691498356 + ... + 691816931.

It is an arithmetic number, because the mean of its divisors is an integer number (17217087903270).

Almost surely, 2^{220345525435656} is an apocalyptic number.

It is an amenable number.

220345525435656 is an abundant number, since it is smaller than the sum of its proper divisors (330601287468984).

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

220345525435656 is a wasteful number, since it uses less digits than its factorization.

220345525435656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383321933 (or 1383321929 counting only the distinct ones).

The product of its (nonzero) digits is 129600000, while the sum is 57.

The spelling of 220345525435656 in words is "two hundred twenty trillion, three hundred forty-five billion, five hundred twenty-five million, four hundred thirty-five thousand, six hundred fifty-six".