326400165366133 has 4 divisors (see below), whose sum is σ = 327309358027680. Its totient is φ = 325490972704588.

The previous prime is 326400165366101. The next prime is 326400165366139. The reversal of 326400165366133 is 331663561004623.

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 326400165366133 - 2⁵ = 326400165366101 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 (326400165366139) 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, 454596330235 + ... + 454596330952.

It is an arithmetic number, because the mean of its divisors is an integer number (81827339506920).

Almost surely, 2^{326400165366133} is an apocalyptic number.

It is an amenable number.

326400165366133 is a deficient number, since it is larger than the sum of its proper divisors (909192661547).

326400165366133 is an equidigital number, since it uses as much as digits as its factorization.

326400165366133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909192661546.

The product of its (nonzero) digits is 4199040, while the sum is 49.

The spelling of 326400165366133 in words is "three hundred twenty-six trillion, four hundred billion, one hundred sixty-five million, three hundred sixty-six thousand, one hundred thirty-three".