669990211012001 has 8 divisors (see below), whose sum is σ = 743286520692000. Its totient is φ = 598758586111840.

The previous prime is 669990211011923. The next prime is 669990211012007. The reversal of 669990211012001 is 100210112099966.

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

It is a de Polignac number, because none of the positive numbers 2^k-669990211012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669990211012007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516171194276 + ... + 516171195573.

It is an arithmetic number, because the mean of its divisors is an integer number (92910815086500).

Almost surely, 2^{669990211012001} is an apocalyptic number.

It is an amenable number.

669990211012001 is a deficient number, since it is larger than the sum of its proper divisors (73296309679999).

669990211012001 is a wasteful number, since it uses less digits than its factorization.

669990211012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032342389919.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 669990211012001 in words is "six hundred sixty-nine trillion, nine hundred ninety billion, two hundred eleven million, twelve thousand, one".