223065621564 has 24 divisors (see below), whose sum is σ = 520601652480. Its totient is φ = 74338749744.

The previous prime is 223065621563. The next prime is 223065621593. The reversal of 223065621564 is 465126560322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223065621563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000644 + ... + 2109195.

It is an arithmetic number, because the mean of its divisors is an integer number (21691735520).

Almost surely, 2^223065621564 is an apocalyptic number.

It is an amenable number.

223065621564 is an abundant number, since it is smaller than the sum of its proper divisors (297536030916).

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

223065621564 is a wasteful number, since it uses less digits than its factorization.

223065621564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4114369 (or 4114367 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 223065621564 in words is "two hundred twenty-three billion, sixty-five million, six hundred twenty-one thousand, five hundred sixty-four".