320025032155 has 16 divisors (see below), whose sum is σ = 404623274400. Its totient is φ = 242316610560.

The previous prime is 320025032111. The next prime is 320025032189. The reversal of 320025032155 is 551230520023.

It is not a de Polignac number, because 320025032155 - 2⁷ = 320025032027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486710 + ... + 1688299.

It is an arithmetic number, because the mean of its divisors is an integer number (25288954650).

Almost surely, 2^320025032155 is an apocalyptic number.

320025032155 is a deficient number, since it is larger than the sum of its proper divisors (84598242245).

320025032155 is a wasteful number, since it uses less digits than its factorization.

320025032155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176094.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 320025032155 its reverse (551230520023), we get a palindrome (871255552178).

The spelling of 320025032155 in words is "three hundred twenty billion, twenty-five million, thirty-two thousand, one hundred fifty-five".