320265038621 has 12 divisors (see below), whose sum is σ = 355444610976. Its totient is φ = 288323324520.

The previous prime is 320265038603. The next prime is 320265038641. The reversal of 320265038621 is 126830562023.

It is a happy number.

It is not a de Polignac number, because 320265038621 - 2¹⁰ = 320265037597 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 (320265038641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12836171 + ... + 12861096.

It is an arithmetic number, because the mean of its divisors is an integer number (29620384248).

Almost surely, 2^320265038621 is an apocalyptic number.

It is an amenable number.

320265038621 is a deficient number, since it is larger than the sum of its proper divisors (35179572355).

320265038621 is a wasteful number, since it uses less digits than its factorization.

320265038621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25697392 (or 25697381 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 320265038621 in words is "three hundred twenty billion, two hundred sixty-five million, thirty-eight thousand, six hundred twenty-one".