222795661 has 8 divisors (see below), whose sum is σ = 251431200. Its totient is φ = 195557040.

The previous prime is 222795649. The next prime is 222795679. The reversal of 222795661 is 166597222.

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 222795661 - 2¹³ = 222787469 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 (222795061) 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, 348891 + ... + 349528.

It is an arithmetic number, because the mean of its divisors is an integer number (31428900).

Almost surely, 2^222795661 is an apocalyptic number.

It is an amenable number.

222795661 is a deficient number, since it is larger than the sum of its proper divisors (28635539).

222795661 is a wasteful number, since it uses less digits than its factorization.

222795661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698459.

The product of its digits is 90720, while the sum is 40.

The square root of 222795661 is about 14926.3411792710. The cubic root of 222795661 is about 606.2274204791.

The spelling of 222795661 in words is "two hundred twenty-two million, seven hundred ninety-five thousand, six hundred sixty-one".