966220669 has 2 divisors, whose sum is σ = 966220670. Its totient is φ = 966220668.

The previous prime is 966220667. The next prime is 966220727. The reversal of 966220669 is 966022669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540004644 + 426216025 = 23238^2 + 20645^2 .

It is a cyclic number.

It is not a de Polignac number, because 966220669 - 2¹ = 966220667 is a prime.

It is a super-2 number, since 2×966220669² = 1867164762405615122, which contains 22 as substring.

Together with 966220667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966220667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483110334 + 483110335.

It is an arithmetic number, because the mean of its divisors is an integer number (483110335).

Almost surely, 2^966220669 is an apocalyptic number.

It is an amenable number.

966220669 is a deficient number, since it is larger than the sum of its proper divisors (1).

966220669 is an equidigital number, since it uses as much as digits as its factorization.

966220669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 966220669 is about 31084.0902874766. The cubic root of 966220669 is about 988.6110062401.

The spelling of 966220669 in words is "nine hundred sixty-six million, two hundred twenty thousand, six hundred sixty-nine".