16500163525 has 6 divisors (see below), whose sum is σ = 20460202802. Its totient is φ = 13200130800.

The previous prime is 16500163441. The next prime is 16500163549. The reversal of 16500163525 is 52536100561.

It can be written as a sum of positive squares in 3 ways, for example, as 90041121 + 16410122404 = 9489^2 + 128102^2 .

It is not a de Polignac number, because 16500163525 - 2¹¹ = 16500161477 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 5 ways as a sum of consecutive naturals, for example, 330003246 + ... + 330003295.

Almost surely, 2^16500163525 is an apocalyptic number.

It is an amenable number.

16500163525 is a deficient number, since it is larger than the sum of its proper divisors (3960039277).

16500163525 is an equidigital number, since it uses as much as digits as its factorization.

16500163525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660006551 (or 660006546 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 16500163525 in words is "sixteen billion, five hundred million, one hundred sixty-three thousand, five hundred twenty-five".