616386533417 has 4 divisors (see below), whose sum is σ = 621239970816. Its totient is φ = 611533096020.

The previous prime is 616386533401. The next prime is 616386533419. The reversal of 616386533417 is 714335683616.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 616386533417 - 2⁴ = 616386533401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616386533419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426718509 + ... + 2426718762.

It is an arithmetic number, because the mean of its divisors is an integer number (155309992704).

Almost surely, 2^616386533417 is an apocalyptic number.

It is an amenable number.

616386533417 is a deficient number, since it is larger than the sum of its proper divisors (4853437399).

616386533417 is a wasteful number, since it uses less digits than its factorization.

616386533417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853437398.

The product of its digits is 6531840, while the sum is 53.

The spelling of 616386533417 in words is "six hundred sixteen billion, three hundred eighty-six million, five hundred thirty-three thousand, four hundred seventeen".