13100061865 has 16 divisors (see below), whose sum is σ = 17179246656. Its totient is φ = 9510609600.

The previous prime is 13100061833. The next prime is 13100061869. The reversal of 13100061865 is 56816000131.

It is not a de Polignac number, because 13100061865 - 2⁵ = 13100061833 is a prime.

It is a super-2 number, since 2×13100061865² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13100061869) 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, 177162 + ... + 239971.

It is an arithmetic number, because the mean of its divisors is an integer number (1073702916).

Almost surely, 2^13100061865 is an apocalyptic number.

It is an amenable number.

13100061865 is a deficient number, since it is larger than the sum of its proper divisors (4079184791).

13100061865 is a wasteful number, since it uses less digits than its factorization.

13100061865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417720.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 13100061865 its reverse (56816000131), we get a palindrome (69916061996).

The spelling of 13100061865 in words is "thirteen billion, one hundred million, sixty-one thousand, eight hundred sixty-five".