16667222900 has 18 divisors (see below), whose sum is σ = 36167873910. Its totient is φ = 6666889120.

The previous prime is 16667222893. The next prime is 16667222903. The reversal of 16667222900 is 922276661.

It can be written as a sum of positive squares in 3 ways, for example, as 929296 + 16666293604 = 964^2 + 129098^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16667222903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83336015 + ... + 83336214.

Almost surely, 2^16667222900 is an apocalyptic number.

16667222900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16667222900 is an abundant number, since it is smaller than the sum of its proper divisors (19500651010).

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

16667222900 is a wasteful number, since it uses less digits than its factorization.

16667222900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166672243 (or 166672236 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 16667222900 in words is "sixteen billion, six hundred sixty-seven million, two hundred twenty-two thousand, nine hundred".