223564436664 has 32 divisors (see below), whose sum is σ = 574016799120. Its totient is φ = 72507384576.

The previous prime is 223564436663. The next prime is 223564436671. The reversal of 223564436664 is 466634465322.

223564436664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223564436664³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223564436663) 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, 125879989 + ... + 125881764.

Almost surely, 2^223564436664 is an apocalyptic number.

223564436664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

223564436664 is an abundant number, since it is smaller than the sum of its proper divisors (350452362456).

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

223564436664 is a wasteful number, since it uses less digits than its factorization.

223564436664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251761799 (or 251761795 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 51.

The spelling of 223564436664 in words is "two hundred twenty-three billion, five hundred sixty-four million, four hundred thirty-six thousand, six hundred sixty-four".