16766589516 has 48 divisors (see below), whose sum is σ = 40192642560. Its totient is φ = 5436020160.

The previous prime is 16766589493. The next prime is 16766589517. The reversal of 16766589516 is 61598566761.

It is a super-2 number, since 2×16766589516² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16766589516.

It is not an unprimeable number, because it can be changed into a prime (16766589517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318955 + ... + 2326173.

It is an arithmetic number, because the mean of its divisors is an integer number (837346720).

Almost surely, 2^16766589516 is an apocalyptic number.

It is an amenable number.

16766589516 is an abundant number, since it is smaller than the sum of its proper divisors (23426053044).

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

16766589516 is a wasteful number, since it uses less digits than its factorization.

16766589516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494 (or 12492 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 60.

The spelling of 16766589516 in words is "sixteen billion, seven hundred sixty-six million, five hundred eighty-nine thousand, five hundred sixteen".