69664319212 has 12 divisors (see below), whose sum is σ = 127213104816. Its totient is φ = 33317717840.

The previous prime is 69664319203. The next prime is 69664319233. The reversal of 69664319212 is 21291346696.

It is a super-6 number, since 6×69664319212⁶ (a number of 66 digits) contains 666666 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378610339 + ... + 378610522.

It is an arithmetic number, because the mean of its divisors is an integer number (10601092068).

Almost surely, 2^69664319212 is an apocalyptic number.

It is an amenable number.

69664319212 is a deficient number, since it is larger than the sum of its proper divisors (57548785604).

69664319212 is a wasteful number, since it uses less digits than its factorization.

69664319212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757220888 (or 757220886 counting only the distinct ones).

The product of its digits is 839808, while the sum is 49.

The spelling of 69664319212 in words is "sixty-nine billion, six hundred sixty-four million, three hundred nineteen thousand, two hundred twelve".