660022079 has 2 divisors, whose sum is σ = 660022080. Its totient is φ = 660022078.

The previous prime is 660021997. The next prime is 660022151. The reversal of 660022079 is 970220066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660022079 - 2¹² = 660017983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660022579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330011039 + 330011040.

It is an arithmetic number, because the mean of its divisors is an integer number (330011040).

Almost surely, 2^660022079 is an apocalyptic number.

660022079 is a deficient number, since it is larger than the sum of its proper divisors (1).

660022079 is an equidigital number, since it uses as much as digits as its factorization.

660022079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 660022079 is about 25690.8948656912. The cubic root of 660022079 is about 870.6684777338.

The spelling of 660022079 in words is "six hundred sixty million, twenty-two thousand, seventy-nine".