16622993843 has 2 divisors, whose sum is σ = 16622993844. Its totient is φ = 16622993842.

The previous prime is 16622993831. The next prime is 16622993899. The reversal of 16622993843 is 34839922661.

It is a weak prime.

It is an emirp because it is prime and its reverse (34839922661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16622993843 - 2⁸ = 16622993587 is a prime.

It is not a weakly prime, because it can be changed into another prime (16622993743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8311496921 + 8311496922.

It is an arithmetic number, because the mean of its divisors is an integer number (8311496922).

Almost surely, 2^16622993843 is an apocalyptic number.

16622993843 is a deficient number, since it is larger than the sum of its proper divisors (1).

16622993843 is an equidigital number, since it uses as much as digits as its factorization.

16622993843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 53.

The spelling of 16622993843 in words is "sixteen billion, six hundred twenty-two million, nine hundred ninety-three thousand, eight hundred forty-three".