13330021055 has 16 divisors (see below), whose sum is σ = 17248443744. Its totient is φ = 9831162240.

The previous prime is 13330021051. The next prime is 13330021057. The reversal of 13330021055 is 55012003331.

It is not a de Polignac number, because 13330021055 - 2² = 13330021051 is a prime.

It is a super-2 number, since 2×13330021055² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13330021055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330021051) 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, 79136 + ... + 181445.

It is an arithmetic number, because the mean of its divisors is an integer number (1078027734).

Almost surely, 2^13330021055 is an apocalyptic number.

13330021055 is a deficient number, since it is larger than the sum of its proper divisors (3918422689).

13330021055 is a wasteful number, since it uses less digits than its factorization.

13330021055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261386.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 13330021055 its reverse (55012003331), we get a palindrome (68342024386).

The spelling of 13330021055 in words is "thirteen billion, three hundred thirty million, twenty-one thousand, fifty-five".