669055413 has 16 divisors (see below), whose sum is σ = 961257920. Its totient is φ = 411485184.

The previous prime is 669055403. The next prime is 669055427. The reversal of 669055413 is 314550966.

It is not a de Polignac number, because 669055413 - 2⁴ = 669055397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669055403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81045 + ... + 88917.

It is an arithmetic number, because the mean of its divisors is an integer number (60078620).

Almost surely, 2^669055413 is an apocalyptic number.

It is an amenable number.

669055413 is a deficient number, since it is larger than the sum of its proper divisors (292202507).

669055413 is a wasteful number, since it uses less digits than its factorization.

669055413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 669055413 is about 25866.1054857510. The cubic root of 669055413 is about 874.6226020907.

The spelling of 669055413 in words is "six hundred sixty-nine million, fifty-five thousand, four hundred thirteen".