5665960123 has 4 divisors (see below), whose sum is σ = 5750526760. Its totient is φ = 5581393488.

The previous prime is 5665960099. The next prime is 5665960127. The reversal of 5665960123 is 3210695665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5665960123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665960123.

It is not an unprimeable number, because it can be changed into a prime (5665960127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42283218 + ... + 42283351.

It is an arithmetic number, because the mean of its divisors is an integer number (1437631690).

Almost surely, 2^5665960123 is an apocalyptic number.

5665960123 is a deficient number, since it is larger than the sum of its proper divisors (84566637).

5665960123 is an equidigital number, since it uses as much as digits as its factorization.

5665960123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84566636.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 5665960123 is about 75272.5721827014. The cubic root of 5665960123 is about 1782.7529805579.

The spelling of 5665960123 in words is "five billion, six hundred sixty-five million, nine hundred sixty thousand, one hundred twenty-three".