13233055545 has 24 divisors (see below), whose sum is σ = 22945408200. Its totient is φ = 7055133696.

The previous prime is 13233055523. The next prime is 13233055547. The reversal of 13233055545 is 54555033231.

13233055545 is a `hidden beast` number, since 1 + 32 + 3 + 30 + 55 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1211248809 + 12021806736 = 34803^2 + 109644^2 .

It is not a de Polignac number, because 13233055545 - 2⁶ = 13233055481 is a prime.

It is a super-4 number, since 4×13233055545⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13233055547) 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, 80361 + ... + 181449.

It is an arithmetic number, because the mean of its divisors is an integer number (956058675).

Almost surely, 2^13233055545 is an apocalyptic number.

13233055545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13233055545 is a deficient number, since it is larger than the sum of its proper divisors (9712352655).

13233055545 is a wasteful number, since it uses less digits than its factorization.

13233055545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104009 (or 104006 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 13233055545 its reverse (54555033231), we get a palindrome (67788088776).

The spelling of 13233055545 in words is "thirteen billion, two hundred thirty-three million, fifty-five thousand, five hundred forty-five".