665432602325 has 24 divisors (see below), whose sum is σ = 879331362048. Its totient is φ = 498366524480.

The previous prime is 665432602291. The next prime is 665432602339. The reversal of 665432602325 is 523206234566.

It is not a de Polignac number, because 665432602325 - 2¹⁶ = 665432536789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12284402 + ... + 12338451.

It is an arithmetic number, because the mean of its divisors is an integer number (36638806752).

Almost surely, 2^665432602325 is an apocalyptic number.

It is an amenable number.

665432602325 is a deficient number, since it is larger than the sum of its proper divisors (213898759723).

665432602325 is a wasteful number, since it uses less digits than its factorization.

665432602325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622933 (or 24622928 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 665432602325 in words is "six hundred sixty-five billion, four hundred thirty-two million, six hundred two thousand, three hundred twenty-five".