966997799669 has 8 divisors (see below), whose sum is σ = 1059637216512. Its totient is φ = 875146803840.

The previous prime is 966997799629. The next prime is 966997799693.

966997799669 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-966997799669 is a prime.

It is a super-2 number, since 2×966997799669² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966997799629) 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, 197102684 + ... + 197107589.

It is an arithmetic number, because the mean of its divisors is an integer number (132454652064).

Almost surely, 2^966997799669 is an apocalyptic number.

It is an amenable number.

966997799669 is a deficient number, since it is larger than the sum of its proper divisors (92639416843).

966997799669 is a wasteful number, since it uses less digits than its factorization.

966997799669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394210507.

The product of its digits is 33748629264, while the sum is 92.

The spelling of 966997799669 in words is "nine hundred sixty-six billion, nine hundred ninety-seven million, seven hundred ninety-nine thousand, six hundred sixty-nine".