5641615999 has 2 divisors, whose sum is σ = 5641616000. Its totient is φ = 5641615998.

The previous prime is 5641615979. The next prime is 5641616011. The reversal of 5641615999 is 9995161465.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5641615999 - 2⁹ = 5641615487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5641615939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2820807999 + 2820808000.

It is an arithmetic number, because the mean of its divisors is an integer number (2820808000).

Almost surely, 2^5641615999 is an apocalyptic number.

5641615999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5641615999 is an equidigital number, since it uses as much as digits as its factorization.

5641615999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2624400, while the sum is 55.

The square root of 5641615999 is about 75110.6916424020. The cubic root of 5641615999 is about 1780.1960814797.

The spelling of 5641615999 in words is "five billion, six hundred forty-one million, six hundred fifteen thousand, nine hundred ninety-nine".