6416405563 has 4 divisors (see below), whose sum is σ = 6439569760. Its totient is φ = 6393241368.

The previous prime is 6416405543. The next prime is 6416405603. The reversal of 6416405563 is 3655046146.

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

It is a cyclic number.

It is not a de Polignac number, because 6416405563 - 2⁵ = 6416405531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6416405543) 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 3 ways as a sum of consecutive naturals, for example, 11581683 + ... + 11582236.

It is an arithmetic number, because the mean of its divisors is an integer number (1609892440).

Almost surely, 2^6416405563 is an apocalyptic number.

6416405563 is a deficient number, since it is larger than the sum of its proper divisors (23164197).

6416405563 is a wasteful number, since it uses less digits than its factorization.

6416405563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164196.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 6416405563 is about 80102.4691442155. The cubic root of 6416405563 is about 1858.2205939761.

The spelling of 6416405563 in words is "six billion, four hundred sixteen million, four hundred five thousand, five hundred sixty-three".