320231154025552 has 160 divisors (see below), whose sum is σ = 800429131756800. Its totient is φ = 120431552102400.

The previous prime is 320231154025429. The next prime is 320231154025567. The reversal of 320231154025552 is 255520451132023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135343824 + ... + 137689552.

It is an arithmetic number, because the mean of its divisors is an integer number (5002682073480).

Almost surely, 2^{320231154025552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320231154025552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400214565878400).

320231154025552 is an abundant number, since it is smaller than the sum of its proper divisors (480197977731248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320231154025552 is a wasteful number, since it uses less digits than its factorization.

320231154025552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349605 (or 2349599 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 320231154025552 in words is "three hundred twenty trillion, two hundred thirty-one billion, one hundred fifty-four million, twenty-five thousand, five hundred fifty-two".