669365450501 has 8 divisors (see below), whose sum is σ = 730232501184. Its totient is φ = 608501007520.

The previous prime is 669365450461. The next prime is 669365450557. The reversal of 669365450501 is 105054563966.

669365450501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-669365450501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 669365450501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669365450101) 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, 94481 + ... + 1160886.

It is an arithmetic number, because the mean of its divisors is an integer number (91279062648).

Almost surely, 2^669365450501 is an apocalyptic number.

It is an amenable number.

669365450501 is a deficient number, since it is larger than the sum of its proper divisors (60867050683).

669365450501 is a wasteful number, since it uses less digits than its factorization.

669365450501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303851.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 669365450501 in words is "six hundred sixty-nine billion, three hundred sixty-five million, four hundred fifty thousand, five hundred one".