5661633619 has 2 divisors, whose sum is σ = 5661633620. Its totient is φ = 5661633618.

The previous prime is 5661633613. The next prime is 5661633673. The reversal of 5661633619 is 9163361665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5661633619 - 2⁷ = 5661633491 is a prime.

It is a super-2 number, since 2×5661633619² = 64108190471582074322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5661633613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830816809 + 2830816810.

It is an arithmetic number, because the mean of its divisors is an integer number (2830816810).

Almost surely, 2^5661633619 is an apocalyptic number.

5661633619 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661633619 is an equidigital number, since it uses as much as digits as its factorization.

5661633619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 5661633619 is about 75243.8277800910. The cubic root of 5661633619 is about 1782.2990973798.

The spelling of 5661633619 in words is "five billion, six hundred sixty-one million, six hundred thirty-three thousand, six hundred nineteen".