325320440145 has 64 divisors (see below), whose sum is σ = 531668966400. Its totient is φ = 169830236160.

The previous prime is 325320440131. The next prime is 325320440167. The reversal of 325320440145 is 541044023523.

It is not a de Polignac number, because 325320440145 - 2²⁸ = 325052004689 is a prime.

It is a super-2 number, since 2×325320440145² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66538861 + ... + 66543749.

It is an arithmetic number, because the mean of its divisors is an integer number (8307327600).

Almost surely, 2^325320440145 is an apocalyptic number.

It is an amenable number.

325320440145 is a deficient number, since it is larger than the sum of its proper divisors (206348526255).

325320440145 is a wasteful number, since it uses less digits than its factorization.

325320440145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 325320440145 its reverse (541044023523), we get a palindrome (866364463668).

The spelling of 325320440145 in words is "three hundred twenty-five billion, three hundred twenty million, four hundred forty thousand, one hundred forty-five".