16465222643 has 2 divisors, whose sum is σ = 16465222644. Its totient is φ = 16465222642.

The previous prime is 16465222639. The next prime is 16465222651. The reversal of 16465222643 is 34622256461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16465222643 - 2² = 16465222639 is a prime.

It is a super-2 number, since 2×16465222643² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16465222643.

It is not a weakly prime, because it can be changed into another prime (16465222043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232611321 + 8232611322.

It is an arithmetic number, because the mean of its divisors is an integer number (8232611322).

Almost surely, 2^16465222643 is an apocalyptic number.

16465222643 is a deficient number, since it is larger than the sum of its proper divisors (1).

16465222643 is an equidigital number, since it uses as much as digits as its factorization.

16465222643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 41.

The spelling of 16465222643 in words is "sixteen billion, four hundred sixty-five million, two hundred twenty-two thousand, six hundred forty-three".