616464664403 has 4 divisors (see below), whose sum is σ = 704531045040. Its totient is φ = 528398283768.

The previous prime is 616464664391. The next prime is 616464664429. The reversal of 616464664403 is 304466464616.

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 616464664403 - 2⁸ = 616464664147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616464664433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44033190308 + ... + 44033190321.

It is an arithmetic number, because the mean of its divisors is an integer number (176132761260).

Almost surely, 2^616464664403 is an apocalyptic number.

616464664403 is a deficient number, since it is larger than the sum of its proper divisors (88066380637).

616464664403 is an equidigital number, since it uses as much as digits as its factorization.

616464664403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88066380636.

The product of its (nonzero) digits is 5971968, while the sum is 50.

The spelling of 616464664403 in words is "six hundred sixteen billion, four hundred sixty-four million, six hundred sixty-four thousand, four hundred three".