326163553103 has 4 divisors (see below), whose sum is σ = 345349644480. Its totient is φ = 306977461728.

The previous prime is 326163553097. The next prime is 326163553123. The reversal of 326163553103 is 301355361623.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301355361623 = 71 ⋅4244441713.

It is a cyclic number.

It is not a de Polignac number, because 326163553103 - 2¹⁴ = 326163536719 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 (326163553123) 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, 9593045663 + ... + 9593045696.

It is an arithmetic number, because the mean of its divisors is an integer number (86337411120).

Almost surely, 2^326163553103 is an apocalyptic number.

326163553103 is a deficient number, since it is larger than the sum of its proper divisors (19186091377).

326163553103 is a wasteful number, since it uses less digits than its factorization.

326163553103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186091376.

The product of its (nonzero) digits is 145800, while the sum is 38.

The spelling of 326163553103 in words is "three hundred twenty-six billion, one hundred sixty-three million, five hundred fifty-three thousand, one hundred three".