220264690656 has 24 divisors (see below), whose sum is σ = 578194813224. Its totient is φ = 73421563520.

The previous prime is 220264690651. The next prime is 220264690703. The reversal of 220264690656 is 656096462022.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220264690651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147211835 + ... + 1147212026.

It is an arithmetic number, because the mean of its divisors is an integer number (24091450551).

Almost surely, 2^220264690656 is an apocalyptic number.

It is an amenable number.

220264690656 is an abundant number, since it is smaller than the sum of its proper divisors (357930122568).

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

220264690656 is a wasteful number, since it uses less digits than its factorization.

220264690656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294423874 (or 2294423866 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 220264690656 in words is "two hundred twenty billion, two hundred sixty-four million, six hundred ninety thousand, six hundred fifty-six".