669092363985 has 16 divisors (see below), whose sum is σ = 1099481507136. Its totient is φ = 347204685888.

The previous prime is 669092363959. The next prime is 669092364043. The reversal of 669092363985 is 589363290966.

669092363985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 669092363985 - 2²¹ = 669090266833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602785359 + ... + 602786468.

It is an arithmetic number, because the mean of its divisors is an integer number (68717594196).

Almost surely, 2^669092363985 is an apocalyptic number.

It is an amenable number.

669092363985 is a deficient number, since it is larger than the sum of its proper divisors (430389143151).

669092363985 is a wasteful number, since it uses less digits than its factorization.

669092363985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205571872.

The product of its (nonzero) digits is 113374080, while the sum is 66.

The spelling of 669092363985 in words is "six hundred sixty-nine billion, ninety-two million, three hundred sixty-three thousand, nine hundred eighty-five".