669024461 has 16 divisors (see below), whose sum is σ = 807805440. Its totient is φ = 541887360.

The previous prime is 669024457. The next prime is 669024463. The reversal of 669024461 is 164420966.

It is a happy number.

It is not a de Polignac number, because 669024461 - 2² = 669024457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669024463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25520 + ... + 44601.

It is an arithmetic number, because the mean of its divisors is an integer number (50487840).

Almost surely, 2^669024461 is an apocalyptic number.

It is an amenable number.

669024461 is a deficient number, since it is larger than the sum of its proper divisors (138780979).

669024461 is a wasteful number, since it uses less digits than its factorization.

669024461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70204.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 669024461 is about 25865.5071668815. The cubic root of 669024461 is about 874.6091145501.

The spelling of 669024461 in words is "six hundred sixty-nine million, twenty-four thousand, four hundred sixty-one".