326634620615161 has 4 divisors (see below), whose sum is σ = 326634657895924. Its totient is φ = 326634583334400.

The previous prime is 326634620615117. The next prime is 326634620615201. The reversal of 326634620615161 is 161516026436623.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 159028972627561 + 167605647987600 = 12610669^2 + 12946260^2 .

It is a cyclic number.

It is not a de Polignac number, because 326634620615161 - 2⁹ = 326634620614649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326634620615099 and 326634620615108.

It is not an unprimeable number, because it can be changed into a prime (326634620610161) 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, 2474341 + ... + 25678621.

It is an arithmetic number, because the mean of its divisors is an integer number (81658664473981).

Almost surely, 2^{326634620615161} is an apocalyptic number.

It is an amenable number.

326634620615161 is a deficient number, since it is larger than the sum of its proper divisors (37280763).

326634620615161 is a wasteful number, since it uses less digits than its factorization.

326634620615161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37280762.

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 326634620615161 in words is "three hundred twenty-six trillion, six hundred thirty-four billion, six hundred twenty million, six hundred fifteen thousand, one hundred sixty-one".