326152661 has 4 divisors (see below), whose sum is σ = 326490912. Its totient is φ = 325814412.

The previous prime is 326152639. The next prime is 326152679. The reversal of 326152661 is 166251623.

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 326152661 - 2¹⁴ = 326136277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326152621) 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, 167675 + ... + 169608.

It is an arithmetic number, because the mean of its divisors is an integer number (81622728).

Almost surely, 2^326152661 is an apocalyptic number.

It is an amenable number.

326152661 is a deficient number, since it is larger than the sum of its proper divisors (338251).

326152661 is an equidigital number, since it uses as much as digits as its factorization.

326152661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338250.

The product of its digits is 12960, while the sum is 32.

The square root of 326152661 is about 18059.6971458549. The cubic root of 326152661 is about 688.3462889933.

The spelling of 326152661 in words is "three hundred twenty-six million, one hundred fifty-two thousand, six hundred sixty-one".