16419951963 has 16 divisors (see below), whose sum is σ = 24432090400. Its totient is φ = 10898828640.

The previous prime is 16419951929. The next prime is 16419951971. The reversal of 16419951963 is 36915991461.

It is a happy number.

16419951963 is a `hidden beast` number, since 1 + 64 + 1 + 9 + 9 + 519 + 63 = 666.

It is not a de Polignac number, because 16419951963 - 2⁹ = 16419951451 is a prime.

It is a super-2 number, since 2×16419951963² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16419951923) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1321648 + ... + 1334013.

It is an arithmetic number, because the mean of its divisors is an integer number (1527005650).

Almost surely, 2^16419951963 is an apocalyptic number.

16419951963 is a deficient number, since it is larger than the sum of its proper divisors (8012138437).

16419951963 is a wasteful number, since it uses less digits than its factorization.

16419951963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655899 (or 2655893 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The spelling of 16419951963 in words is "sixteen billion, four hundred nineteen million, nine hundred fifty-one thousand, nine hundred sixty-three".