5660663123 has 4 divisors (see below), whose sum is σ = 5663067120. Its totient is φ = 5658259128.

The previous prime is 5660663117. The next prime is 5660663159. The reversal of 5660663123 is 3213660665.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5660663123 - 2²⁰ = 5659614547 is a prime.

It is a super-2 number, since 2×5660663123² = 64086213984184226258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5660660123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198463 + ... + 1203176.

It is an arithmetic number, because the mean of its divisors is an integer number (1415766780).

Almost surely, 2^5660663123 is an apocalyptic number.

5660663123 is a deficient number, since it is larger than the sum of its proper divisors (2403997).

5660663123 is a wasteful number, since it uses less digits than its factorization.

5660663123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403996.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 5660663123 is about 75237.3784963299. The cubic root of 5660663123 is about 1782.1972532182.

The spelling of 5660663123 in words is "five billion, six hundred sixty million, six hundred sixty-three thousand, one hundred twenty-three".