325022640181 has 4 divisors (see below), whose sum is σ = 331938015552. Its totient is φ = 318107264812.

The previous prime is 325022640179. The next prime is 325022640199. The reversal of 325022640181 is 181046220523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 325022640181 - 2¹ = 325022640179 is a prime.

It is a super-2 number, since 2×325022640181² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325022640581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3457687615 + ... + 3457687708.

It is an arithmetic number, because the mean of its divisors is an integer number (82984503888).

Almost surely, 2^325022640181 is an apocalyptic number.

It is an amenable number.

325022640181 is a deficient number, since it is larger than the sum of its proper divisors (6915375371).

325022640181 is an equidigital number, since it uses as much as digits as its factorization.

325022640181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915375370.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 325022640181 in words is "three hundred twenty-five billion, twenty-two million, six hundred forty thousand, one hundred eighty-one".