669059501 has 8 divisors (see below), whose sum is σ = 730358208. Its totient is φ = 607840000.

The previous prime is 669059449. The next prime is 669059513. The reversal of 669059501 is 105950966.

669059501 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 not a de Polignac number, because 669059501 - 2⁶ = 669059437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669059201) 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, 1385 + ... + 36606.

It is an arithmetic number, because the mean of its divisors is an integer number (91294776).

Almost surely, 2^669059501 is an apocalyptic number.

It is an amenable number.

669059501 is a deficient number, since it is larger than the sum of its proper divisors (61298707).

669059501 is a wasteful number, since it uses less digits than its factorization.

669059501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39603.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 669059501 is about 25866.1845079633. The cubic root of 669059501 is about 874.6243834329.

The spelling of 669059501 in words is "six hundred sixty-nine million, fifty-nine thousand, five hundred one".