669462696069 has 8 divisors (see below), whose sum is σ = 892670314272. Its totient is φ = 446281770960.

The previous prime is 669462696061. The next prime is 669462696109. The reversal of 669462696069 is 960696264966.

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

It is not a de Polignac number, because 669462696069 - 2³ = 669462696061 is a prime.

It is a super-2 number, since 2×669462696069² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 669462695994 and 669462696012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669462696061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6614679 + ... + 6715124.

It is an arithmetic number, because the mean of its divisors is an integer number (111583789284).

Almost surely, 2^669462696069 is an apocalyptic number.

It is an amenable number.

669462696069 is a deficient number, since it is larger than the sum of its proper divisors (223207618203).

669462696069 is a wasteful number, since it uses less digits than its factorization.

669462696069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346547.

The product of its (nonzero) digits is 272097792, while the sum is 69.

The spelling of 669462696069 in words is "six hundred sixty-nine billion, four hundred sixty-two million, six hundred ninety-six thousand, sixty-nine".