223150425661 has 4 divisors (see below), whose sum is σ = 225316934752. Its totient is φ = 220983916572.

The previous prime is 223150425643. The next prime is 223150425713. The reversal of 223150425661 is 166524051322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223150425661 - 2²⁷ = 223016207933 is a prime.

It is a super-3 number, since 3×223150425661³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223150425661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223150425601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083254391 + ... + 1083254596.

It is an arithmetic number, because the mean of its divisors is an integer number (56329233688).

Almost surely, 2^223150425661 is an apocalyptic number.

It is an amenable number.

223150425661 is a deficient number, since it is larger than the sum of its proper divisors (2166509091).

223150425661 is a wasteful number, since it uses less digits than its factorization.

223150425661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166509090.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 223150425661 its reverse (166524051322), we get a palindrome (389674476983).

The spelling of 223150425661 in words is "two hundred twenty-three billion, one hundred fifty million, four hundred twenty-five thousand, six hundred sixty-one".