669802817194 has 8 divisors (see below), whose sum is σ = 1148233400928. Its totient is φ = 287058350220.

The previous prime is 669802817153. The next prime is 669802817227. The reversal of 669802817194 is 491718208966.

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, 23921529172 + ... + 23921529199.

It is an arithmetic number, because the mean of its divisors is an integer number (143529175116).

Almost surely, 2^669802817194 is an apocalyptic number.

669802817194 is a deficient number, since it is larger than the sum of its proper divisors (478430583734).

669802817194 is a wasteful number, since it uses less digits than its factorization.

669802817194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47843058380.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 669802817194 in words is "six hundred sixty-nine billion, eight hundred two million, eight hundred seventeen thousand, one hundred ninety-four".