220995667 has 8 divisors (see below), whose sum is σ = 223891200. Its totient is φ = 218114760.

The previous prime is 220995629. The next prime is 220995679. The reversal of 220995667 is 766599022.

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 220995667 - 2⁷ = 220995539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220995967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28584 + ... + 35482.

It is an arithmetic number, because the mean of its divisors is an integer number (27986400).

Almost surely, 2^220995667 is an apocalyptic number.

220995667 is a deficient number, since it is larger than the sum of its proper divisors (2895533).

220995667 is a wasteful number, since it uses less digits than its factorization.

220995667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 220995667 is about 14865.9230120433. The cubic root of 220995667 is about 604.5904082823.

The spelling of 220995667 in words is "two hundred twenty million, nine hundred ninety-five thousand, six hundred sixty-seven".