16515250136 has 64 divisors (see below), whose sum is σ = 39938400000. Its totient is φ = 6212626560.

The previous prime is 16515250133. The next prime is 16515250189. The reversal of 16515250136 is 63105251561.

It is a junction number, because it is equal to n+sod(n) for n = 16515250096 and 16515250105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16515250133) 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 15 ways as a sum of consecutive naturals, for example, 444386 + ... + 480113.

It is an arithmetic number, because the mean of its divisors is an integer number (624037500).

Almost surely, 2^16515250136 is an apocalyptic number.

It is an amenable number.

16515250136 is an abundant number, since it is smaller than the sum of its proper divisors (23423149864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16515250136 is a wasteful number, since it uses less digits than its factorization.

16515250136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924552 (or 924548 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 16515250136 in words is "sixteen billion, five hundred fifteen million, two hundred fifty thousand, one hundred thirty-six".