616661017 has 32 divisors (see below), whose sum is σ = 780307200. Its totient is φ = 475372800.

The previous prime is 616661011. The next prime is 616661053. The reversal of 616661017 is 710166616.

It is not a de Polignac number, because 616661017 - 2²³ = 608272409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616661011) 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, 233967 + ... + 236587.

It is an arithmetic number, because the mean of its divisors is an integer number (24384600).

Almost surely, 2^616661017 is an apocalyptic number.

It is an amenable number.

616661017 is a deficient number, since it is larger than the sum of its proper divisors (163646183).

616661017 is a wasteful number, since it uses less digits than its factorization.

616661017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 616661017 is about 24832.6602884186. The cubic root of 616661017 is about 851.1684125379.

The spelling of 616661017 in words is "six hundred sixteen million, six hundred sixty-one thousand, seventeen".