16850021722 has 4 divisors (see below), whose sum is σ = 25275032586. Its totient is φ = 8425010860.

The previous prime is 16850021717. The next prime is 16850021761. The reversal of 16850021722 is 22712005861.

It is a happy number.

16850021722 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14337907081 + 2512114641 = 119741^2 + 50121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212505429 + ... + 4212505432.

Almost surely, 2^16850021722 is an apocalyptic number.

16850021722 is a deficient number, since it is larger than the sum of its proper divisors (8425010864).

16850021722 is an equidigital number, since it uses as much as digits as its factorization.

16850021722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425010863.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 16850021722 in words is "sixteen billion, eight hundred fifty million, twenty-one thousand, seven hundred twenty-two".