16513126544057 has 48 divisors (see below), whose sum is σ = 20061613268928. Its totient is φ = 13466191415040.

The previous prime is 16513126544053. The next prime is 16513126544063. The reversal of 16513126544057 is 75044562131561.

It is not a de Polignac number, because 16513126544057 - 2² = 16513126544053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16513126543996 and 16513126544014.

It is not an unprimeable number, because it can be changed into a prime (16513126544053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15223283 + ... + 16271895.

It is an arithmetic number, because the mean of its divisors is an integer number (417950276436).

Almost surely, 2^{16513126544057} is an apocalyptic number.

It is an amenable number.

16513126544057 is a deficient number, since it is larger than the sum of its proper divisors (3548486724871).

16513126544057 is a wasteful number, since it uses less digits than its factorization.

16513126544057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048890 (or 1048877 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 16513126544057 in words is "sixteen trillion, five hundred thirteen billion, one hundred twenty-six million, five hundred forty-four thousand, fifty-seven".