669696956070 has 16 divisors (see below), whose sum is σ = 1607272694640. Its totient is φ = 178585854944.

The previous prime is 669696956069. The next prime is 669696956087. The reversal of 669696956070 is 70659696966.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 669696955986 and 669696956004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11161615905 + ... + 11161615964.

It is an arithmetic number, because the mean of its divisors is an integer number (100454543415).

Almost surely, 2^669696956070 is an apocalyptic number.

669696956070 is an abundant number, since it is smaller than the sum of its proper divisors (937575738570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669696956070 is a wasteful number, since it uses less digits than its factorization.

669696956070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22323231879.

The product of its (nonzero) digits is 198404640, while the sum is 69.

The spelling of 669696956070 in words is "six hundred sixty-nine billion, six hundred ninety-six million, nine hundred fifty-six thousand, seventy".