223811657652 has 96 divisors (see below), whose sum is σ = 589768704000. Its totient is φ = 65445436800.

The previous prime is 223811657647. The next prime is 223811657681. The reversal of 223811657652 is 256756118322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1349749 + ... + 1506467.

It is an arithmetic number, because the mean of its divisors is an integer number (6143424000).

Almost surely, 2^223811657652 is an apocalyptic number.

223811657652 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 223811657652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294884352000).

223811657652 is an abundant number, since it is smaller than the sum of its proper divisors (365957046348).

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

223811657652 is a wasteful number, since it uses less digits than its factorization.

223811657652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157117 (or 157115 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The spelling of 223811657652 in words is "two hundred twenty-three billion, eight hundred eleven million, six hundred fifty-seven thousand, six hundred fifty-two".