13000645255 has 24 divisors (see below), whose sum is σ = 16967815632. Its totient is φ = 9558042624.

The previous prime is 13000645249. The next prime is 13000645261. The reversal of 13000645255 is 55254600031.

It is an interprime number because it is at equal distance from previous prime (13000645249) and next prime (13000645261).

It is not a de Polignac number, because 13000645255 - 2¹¹ = 13000643207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157927 + ... + 225703.

It is an arithmetic number, because the mean of its divisors is an integer number (706992318).

Almost surely, 2^13000645255 is an apocalyptic number.

13000645255 is a deficient number, since it is larger than the sum of its proper divisors (3967170377).

13000645255 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 13000645255 = (36501005524)₉.

13000645255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68035 (or 68022 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13000645255 in words is "thirteen billion, six hundred forty-five thousand, two hundred fifty-five".