2220464404656 has 60 divisors (see below), whose sum is σ = 6214465481640. Its totient is φ = 740125128960.

The previous prime is 2220464404591. The next prime is 2220464404663. The reversal of 2220464404656 is 6564044640222.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3453835 + ... + 4045973.

It is an arithmetic number, because the mean of its divisors is an integer number (103574424694).

Almost surely, 2^{2220464404656} is an apocalyptic number.

It is an amenable number.

2220464404656 is an abundant number, since it is smaller than the sum of its proper divisors (3994001076984).

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

2220464404656 is a wasteful number, since it uses less digits than its factorization.

2220464404656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618194 (or 618185 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 45.

The spelling of 2220464404656 in words is "two trillion, two hundred twenty billion, four hundred sixty-four million, four hundred four thousand, six hundred fifty-six".