223254538672 has 120 divisors (see below), whose sum is σ = 507718753920. Its totient is φ = 94818662400.

The previous prime is 223254538651. The next prime is 223254538681. The reversal of 223254538672 is 276835452322.

It is a super-3 number, since 3×223254538672³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1676328 + ... + 1804600.

It is an arithmetic number, because the mean of its divisors is an integer number (4230989616).

Almost surely, 2^223254538672 is an apocalyptic number.

223254538672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223254538672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253859376960).

223254538672 is an abundant number, since it is smaller than the sum of its proper divisors (284464215248).

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

223254538672 is a wasteful number, since it uses less digits than its factorization.

223254538672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128363 (or 128346 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 49.

The spelling of 223254538672 in words is "two hundred twenty-three billion, two hundred fifty-four million, five hundred thirty-eight thousand, six hundred seventy-two".