13326552261 has 24 divisors (see below), whose sum is σ = 21004909536. Its totient is φ = 8074585440.

The previous prime is 13326552233. The next prime is 13326552271. The reversal of 13326552261 is 16225562331.

13326552261 is a `hidden beast` number, since 1 + 332 + 65 + 5 + 2 + 261 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-13326552261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13326552271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 416511 + ... + 447363.

It is an arithmetic number, because the mean of its divisors is an integer number (875204564).

Almost surely, 2^13326552261 is an apocalyptic number.

13326552261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13326552261 is the 61706-th nonagonal number.

It is an amenable number.

13326552261 is a deficient number, since it is larger than the sum of its proper divisors (7678357275).

13326552261 is a wasteful number, since it uses less digits than its factorization.

13326552261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35233 (or 35230 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 13326552261 in words is "thirteen billion, three hundred twenty-six million, five hundred fifty-two thousand, two hundred sixty-one".