16513126543996 has 48 divisors (see below), whose sum is σ = 30461424634368. Its totient is φ = 7817244177600.

The previous prime is 16513126543987. The next prime is 16513126544017. The reversal of 16513126543996 is 69934562131561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19881151 + ... + 20695081.

It is an arithmetic number, because the mean of its divisors is an integer number (634613013216).

Almost surely, 2^{16513126543996} is an apocalyptic number.

It is an amenable number.

16513126543996 is a deficient number, since it is larger than the sum of its proper divisors (13948298090372).

16513126543996 is a wasteful number, since it uses less digits than its factorization.

16513126543996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816202 (or 816200 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 61.

The spelling of 16513126543996 in words is "sixteen trillion, five hundred thirteen billion, one hundred twenty-six million, five hundred forty-three thousand, nine hundred ninety-six".