5661111075 has 24 divisors (see below), whose sum is σ = 9408731136. Its totient is φ = 3003444000.

The previous prime is 5661111073. The next prime is 5661111103. The reversal of 5661111075 is 5701111665.

It is not a de Polignac number, because 5661111075 - 2¹ = 5661111073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5661111073) 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 in 23 ways as a sum of consecutive naturals, for example, 183271 + ... + 211920.

It is an arithmetic number, because the mean of its divisors is an integer number (392030464).

Almost surely, 2^5661111075 is an apocalyptic number.

5661111075 is a deficient number, since it is larger than the sum of its proper divisors (3747620061).

5661111075 is a wasteful number, since it uses less digits than its factorization.

5661111075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395395 (or 395390 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 33.

The square root of 5661111075 is about 75240.3553619997. The cubic root of 5661111075 is about 1782.2442628912.

The spelling of 5661111075 in words is "five billion, six hundred sixty-one million, one hundred eleven thousand, seventy-five".