669070013090 has 8 divisors (see below), whose sum is σ = 1204326023580. Its totient is φ = 267628005232.

The previous prime is 669070012993. The next prime is 669070013107. The reversal of 669070013090 is 90310070966.

It is a happy number.

It is a Cunningham number, because it is equal to 817967²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 669070013089 + 1 = 817967^2 + 1^2 .

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

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, 33453500645 + ... + 33453500664.

Almost surely, 2^669070013090 is an apocalyptic number.

669070013090 is a deficient number, since it is larger than the sum of its proper divisors (535256010490).

669070013090 is a wasteful number, since it uses less digits than its factorization.

669070013090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66907001316.

The product of its (nonzero) digits is 61236, while the sum is 41.

The spelling of 669070013090 in words is "six hundred sixty-nine billion, seventy million, thirteen thousand, ninety".