16866212896 has 48 divisors (see below), whose sum is σ = 36434372184. Its totient is φ = 7637520384.

The previous prime is 16866212893. The next prime is 16866212897. The reversal of 16866212896 is 69821266861.

It can be written as a sum of positive squares in 4 ways, for example, as 9596945296 + 7269267600 = 97964^2 + 85260^2 .

It is not an unprimeable number, because it can be changed into a prime (16866212893) 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 7 ways as a sum of consecutive naturals, for example, 360441 + ... + 404536.

Almost surely, 2^16866212896 is an apocalyptic number.

16866212896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16866212896 is an abundant number, since it is smaller than the sum of its proper divisors (19568159288).

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

16866212896 is a wasteful number, since it uses less digits than its factorization.

16866212896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765053 (or 765045 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The spelling of 16866212896 in words is "sixteen billion, eight hundred sixty-six million, two hundred twelve thousand, eight hundred ninety-six".