223143878660 has 12 divisors (see below), whose sum is σ = 468602145228. Its totient is φ = 89257551456.

The previous prime is 223143878651. The next prime is 223143878677. The reversal of 223143878660 is 66878341322.

It can be written as a sum of positive squares in 2 ways, for example, as 154579503556 + 68564375104 = 393166^2 + 261848^2 .

It is a super-3 number, since 3×223143878660³ (a number of 35 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 223143878599 and 223143878608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578596947 + ... + 5578596986.

It is an arithmetic number, because the mean of its divisors is an integer number (39050178769).

Almost surely, 2^223143878660 is an apocalyptic number.

223143878660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223143878660 is an abundant number, since it is smaller than the sum of its proper divisors (245458266568).

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

223143878660 is a wasteful number, since it uses less digits than its factorization.

223143878660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11157193942 (or 11157193940 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 223143878660 in words is "two hundred twenty-three billion, one hundred forty-three million, eight hundred seventy-eight thousand, six hundred sixty".