320541663751365 has 48 divisors (see below), whose sum is σ = 591366253915008. Its totient is φ = 145236576242688.

The previous prime is 320541663751321. The next prime is 320541663751373. The reversal of 320541663751365 is 563157366145023.

It is not a de Polignac number, because 320541663751365 - 2¹⁶ = 320541663685829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118197894 + ... + 120879383.

It is an arithmetic number, because the mean of its divisors is an integer number (12320130289896).

Almost surely, 2^{320541663751365} is an apocalyptic number.

320541663751365 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320541663751365 is a deficient number, since it is larger than the sum of its proper divisors (270824590163643).

320541663751365 is a wasteful number, since it uses less digits than its factorization.

320541663751365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239077518 (or 239077405 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 57.

The spelling of 320541663751365 in words is "three hundred twenty trillion, five hundred forty-one billion, six hundred sixty-three million, seven hundred fifty-one thousand, three hundred sixty-five".