16500918488 has 16 divisors (see below), whose sum is σ = 32759176680. Its totient is φ = 7765138048.

The previous prime is 16500918487. The next prime is 16500918503. The reversal of 16500918488 is 88481900561.

It is a super-2 number, since 2×16500918488² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16500918487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60665006 + ... + 60665277.

Almost surely, 2^16500918488 is an apocalyptic number.

It is an amenable number.

16500918488 is a deficient number, since it is larger than the sum of its proper divisors (16258258192).

16500918488 is a wasteful number, since it uses less digits than its factorization.

16500918488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121330306 (or 121330302 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 16500918488 in words is "sixteen billion, five hundred million, nine hundred eighteen thousand, four hundred eighty-eight".