320025540105155 has 16 divisors (see below), whose sum is σ = 386937090015840. Its totient is φ = 254084172077568.

The previous prime is 320025540105143. The next prime is 320025540105169. The reversal of 320025540105155 is 551501045520023.

It is a cyclic number.

It is not a de Polignac number, because 320025540105155 - 2⁶ = 320025540105091 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, 83621942 + ... + 87365211.

It is an arithmetic number, because the mean of its divisors is an integer number (24183568125990).

Almost surely, 2^{320025540105155} is an apocalyptic number.

320025540105155 is a deficient number, since it is larger than the sum of its proper divisors (66911549910685).

320025540105155 is a wasteful number, since it uses less digits than its factorization.

320025540105155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170989990.

The product of its (nonzero) digits is 150000, while the sum is 38.

Adding to 320025540105155 its reverse (551501045520023), we get a palindrome (871526585625178).

The spelling of 320025540105155 in words is "three hundred twenty trillion, twenty-five billion, five hundred forty million, one hundred five thousand, one hundred fifty-five".