326125402161 has 16 divisors (see below), whose sum is σ = 468592629120. Its totient is φ = 200559697920.

The previous prime is 326125402157. The next prime is 326125402181. The reversal of 326125402161 is 161204521623.

It is not a de Polignac number, because 326125402161 - 2² = 326125402157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (326125402181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2708176 + ... + 2826033.

It is an arithmetic number, because the mean of its divisors is an integer number (29287039320).

Almost surely, 2^326125402161 is an apocalyptic number.

It is an amenable number.

326125402161 is a deficient number, since it is larger than the sum of its proper divisors (142467226959).

326125402161 is a wasteful number, since it uses less digits than its factorization.

326125402161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535736.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 326125402161 its reverse (161204521623), we get a palindrome (487329923784).

The spelling of 326125402161 in words is "three hundred twenty-six billion, one hundred twenty-five million, four hundred two thousand, one hundred sixty-one".