616341861 has 6 divisors (see below), whose sum is σ = 890271590. Its totient is φ = 410894568.

The previous prime is 616341829. The next prime is 616341871. The reversal of 616341861 is 168143616.

616341861 is a `hidden beast` number, since 6 + 1 + 634 + 18 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 432224100 + 184117761 = 20790^2 + 13569^2 .

It is not a de Polignac number, because 616341861 - 2⁵ = 616341829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616341811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34241206 + ... + 34241223.

Almost surely, 2^616341861 is an apocalyptic number.

It is an amenable number.

616341861 is a deficient number, since it is larger than the sum of its proper divisors (273929729).

616341861 is a wasteful number, since it uses less digits than its factorization.

616341861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68482435 (or 68482432 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 616341861 is about 24826.2333228382. The cubic root of 616341861 is about 851.0215450383.

The spelling of 616341861 in words is "six hundred sixteen million, three hundred forty-one thousand, eight hundred sixty-one".