16273251668 has 6 divisors (see below), whose sum is σ = 28478190426. Its totient is φ = 8136625832.

The previous prime is 16273251647. The next prime is 16273251691. The reversal of 16273251668 is 86615237261.

It can be written as a sum of positive squares in only one way, i.e., 8710862224 + 7562389444 = 93332^2 + 86962^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2034156455 + ... + 2034156462.

It is an arithmetic number, because the mean of its divisors is an integer number (4746365071).

Almost surely, 2^16273251668 is an apocalyptic number.

It is an amenable number.

16273251668 is a deficient number, since it is larger than the sum of its proper divisors (12204938758).

16273251668 is a wasteful number, since it uses less digits than its factorization.

16273251668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068312921 (or 4068312919 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 16273251668 in words is "sixteen billion, two hundred seventy-three million, two hundred fifty-one thousand, six hundred sixty-eight".