223057661 has 8 divisors (see below), whose sum is σ = 224400000. Its totient is φ = 221719680.

The previous prime is 223057651. The next prime is 223057687. The reversal of 223057661 is 166750322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223057661 - 2²⁶ = 155948797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223057621) 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, 177965 + ... + 179213.

It is an arithmetic number, because the mean of its divisors is an integer number (28050000).

Almost surely, 2^223057661 is an apocalyptic number.

It is an amenable number.

223057661 is a deficient number, since it is larger than the sum of its proper divisors (1342339).

223057661 is a wasteful number, since it uses less digits than its factorization.

223057661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 223057661 is about 14935.1150313615. The cubic root of 223057661 is about 606.4649615573.

The spelling of 223057661 in words is "two hundred twenty-three million, fifty-seven thousand, six hundred sixty-one".