325365136661 has 4 divisors (see below), whose sum is σ = 325880771424. Its totient is φ = 324849501900.

The previous prime is 325365136651. The next prime is 325365136669. The reversal of 325365136661 is 166631563523.

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 325365136661 - 2⁶ = 325365136597 is a prime.

It is a super-3 number, since 3×325365136661³ (a number of 36 digits) contains 333 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 (325365136669) 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, 257816435 + ... + 257817696.

It is an arithmetic number, because the mean of its divisors is an integer number (81470192856).

Almost surely, 2^325365136661 is an apocalyptic number.

It is an amenable number.

325365136661 is a deficient number, since it is larger than the sum of its proper divisors (515634763).

325365136661 is an equidigital number, since it uses as much as digits as its factorization.

325365136661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515634762.

The product of its digits is 1749600, while the sum is 47.

The spelling of 325365136661 in words is "three hundred twenty-five billion, three hundred sixty-five million, one hundred thirty-six thousand, six hundred sixty-one".