669342796964 has 12 divisors (see below), whose sum is σ = 1176210269388. Its totient is φ = 333282720000.

The previous prime is 669342796963. The next prime is 669342797021. The reversal of 669342796964 is 469697243966.

It can be written as a sum of positive squares in 2 ways, for example, as 190146579364 + 479196217600 = 436058^2 + 692240^2 .

It is not an unprimeable number, because it can be changed into a prime (669342796963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347168537 + ... + 347170464.

It is an arithmetic number, because the mean of its divisors is an integer number (98017522449).

Almost surely, 2^669342796964 is an apocalyptic number.

It is an amenable number.

669342796964 is a deficient number, since it is larger than the sum of its proper divisors (506867472424).

669342796964 is a wasteful number, since it uses less digits than its factorization.

669342796964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694339246 (or 694339244 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 71.

The spelling of 669342796964 in words is "six hundred sixty-nine billion, three hundred forty-two million, seven hundred ninety-six thousand, nine hundred sixty-four".