616994163 has 12 divisors (see below), whose sum is σ = 938120040. Its totient is φ = 389680416.

The previous prime is 616994137. The next prime is 616994167. The reversal of 616994163 is 361499616.

616994163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616994163 - 2²¹ = 614897011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616994167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1803906 + ... + 1804247.

It is an arithmetic number, because the mean of its divisors is an integer number (78176670).

Almost surely, 2^616994163 is an apocalyptic number.

616994163 is a deficient number, since it is larger than the sum of its proper divisors (321125877).

616994163 is a wasteful number, since it uses less digits than its factorization.

616994163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608178 (or 3608175 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 616994163 is about 24839.3672020847. The cubic root of 616994163 is about 851.3216638354.

The spelling of 616994163 in words is "six hundred sixteen million, nine hundred ninety-four thousand, one hundred sixty-three".