13015657143 has 12 divisors (see below), whose sum is σ = 19237612680. Its totient is φ = 8475311376.

The previous prime is 13015657139. The next prime is 13015657163. The reversal of 13015657143 is 34175651031.

13015657143 is a `hidden beast` number, since 1 + 30 + 1 + 56 + 571 + 4 + 3 = 666.

It is not a de Polignac number, because 13015657143 - 2² = 13015657139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13015657098 and 13015657107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015657163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16815708 + ... + 16816481.

It is an arithmetic number, because the mean of its divisors is an integer number (1603134390).

Almost surely, 2^13015657143 is an apocalyptic number.

13015657143 is a deficient number, since it is larger than the sum of its proper divisors (6221955537).

13015657143 is a wasteful number, since it uses less digits than its factorization.

13015657143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33632238 (or 33632235 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 13015657143 in words is "thirteen billion, fifteen million, six hundred fifty-seven thousand, one hundred forty-three".