616805620571 has 32 divisors (see below), whose sum is σ = 780204192768. Its totient is φ = 475121940480.

The previous prime is 616805620567. The next prime is 616805620591. The reversal of 616805620571 is 175026508616.

It is not a de Polignac number, because 616805620571 - 2² = 616805620567 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616805620591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1365491 + ... + 1760163.

It is an arithmetic number, because the mean of its divisors is an integer number (24381381024).

Almost surely, 2^616805620571 is an apocalyptic number.

616805620571 is a deficient number, since it is larger than the sum of its proper divisors (163398572197).

616805620571 is a wasteful number, since it uses less digits than its factorization.

616805620571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395291.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 616805620571 in words is "six hundred sixteen billion, eight hundred five million, six hundred twenty thousand, five hundred seventy-one".