320145545255 has 8 divisors (see below), whose sum is σ = 387199652352. Its totient is φ = 254099770848.

The previous prime is 320145545227. The next prime is 320145545257. The reversal of 320145545255 is 552545541023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320145545255 - 2²² = 320141350951 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 (320145545257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252082472 + ... + 252083741.

It is an arithmetic number, because the mean of its divisors is an integer number (48399956544).

Almost surely, 2^320145545255 is an apocalyptic number.

320145545255 is a deficient number, since it is larger than the sum of its proper divisors (67054107097).

320145545255 is a wasteful number, since it uses less digits than its factorization.

320145545255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504166345.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 320145545255 in words is "three hundred twenty billion, one hundred forty-five million, five hundred forty-five thousand, two hundred fifty-five".