13526045665 has 16 divisors (see below), whose sum is σ = 18748402560. Its totient is φ = 9258469120.

The previous prime is 13526045651. The next prime is 13526045669. The reversal of 13526045665 is 56654062531.

13526045665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13526045665 - 2¹⁷ = 13525914593 is a prime.

It is a super-2 number, since 2×13526045665² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13526045669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7232245 + ... + 7234114.

It is an arithmetic number, because the mean of its divisors is an integer number (1171775160).

Almost surely, 2^13526045665 is an apocalyptic number.

It is an amenable number.

13526045665 is a deficient number, since it is larger than the sum of its proper divisors (5222356895).

13526045665 is a wasteful number, since it uses less digits than its factorization.

13526045665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466392.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 13526045665 in words is "thirteen billion, five hundred twenty-six million, forty-five thousand, six hundred sixty-five".