5661614999 has 2 divisors, whose sum is σ = 5661615000. Its totient is φ = 5661614998.

The previous prime is 5661614993. The next prime is 5661615017. The reversal of 5661614999 is 9994161665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5661614999 - 2⁴ = 5661614983 is a prime.

It is a super-3 number, since 3×5661614999³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5661614993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830807499 + 2830807500.

It is an arithmetic number, because the mean of its divisors is an integer number (2830807500).

Almost surely, 2^5661614999 is an apocalyptic number.

5661614999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661614999 is an equidigital number, since it uses as much as digits as its factorization.

5661614999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3149280, while the sum is 56.

The square root of 5661614999 is about 75243.7040489103. The cubic root of 5661614999 is about 1782.2971435006.

The spelling of 5661614999 in words is "five billion, six hundred sixty-one million, six hundred fourteen thousand, nine hundred ninety-nine".