226558661 has 16 divisors (see below), whose sum is σ = 266692608. Its totient is φ = 188419200.

The previous prime is 226558637. The next prime is 226558669. The reversal of 226558661 is 166855622.

It is a cyclic number.

It is not a de Polignac number, because 226558661 - 2¹⁰ = 226557637 is a prime.

It is a super-2 number, since 2×226558661² = 102657653748225842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226558669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52751 + ... + 56883.

It is an arithmetic number, because the mean of its divisors is an integer number (16668288).

Almost surely, 2^226558661 is an apocalyptic number.

It is an amenable number.

226558661 is a deficient number, since it is larger than the sum of its proper divisors (40133947).

226558661 is a wasteful number, since it uses less digits than its factorization.

226558661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372.

The product of its digits is 172800, while the sum is 41.

The square root of 226558661 is about 15051.8656983113. The cubic root of 226558661 is about 609.6214268413.

The spelling of 226558661 in words is "two hundred twenty-six million, five hundred fifty-eight thousand, six hundred sixty-one".