616416500021 has 32 divisors (see below), whose sum is σ = 723552480000. Its totient is φ = 514119352320.

The previous prime is 616416500017. The next prime is 616416500047. The reversal of 616416500021 is 120005614616.

It is not a de Polignac number, because 616416500021 - 2² = 616416500017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616416500321) 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 31 ways as a sum of consecutive naturals, for example, 289532285 + ... + 289534413.

It is an arithmetic number, because the mean of its divisors is an integer number (22611015000).

Almost surely, 2^616416500021 is an apocalyptic number.

It is an amenable number.

616416500021 is a deficient number, since it is larger than the sum of its proper divisors (107135979979).

616416500021 is a wasteful number, since it uses less digits than its factorization.

616416500021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 616416500021 in words is "six hundred sixteen billion, four hundred sixteen million, five hundred thousand, twenty-one".