669165033439 has 8 divisors (see below), whose sum is σ = 764912390688. Its totient is φ = 573455764320.

The previous prime is 669165033421. The next prime is 669165033443. The reversal of 669165033439 is 934330561966.

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

It is a cyclic number.

It is not a de Polignac number, because 669165033439 - 2³⁹ = 119409219551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 669165033439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669165033469) 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, 9484372 + ... + 9554665.

It is an arithmetic number, because the mean of its divisors is an integer number (95614048836).

Almost surely, 2^669165033439 is an apocalyptic number.

669165033439 is a deficient number, since it is larger than the sum of its proper divisors (95747357249).

669165033439 is a wasteful number, since it uses less digits than its factorization.

669165033439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19044065.

The product of its (nonzero) digits is 9447840, while the sum is 55.

The spelling of 669165033439 in words is "six hundred sixty-nine billion, one hundred sixty-five million, thirty-three thousand, four hundred thirty-nine".