5656168745 has 8 divisors (see below), whose sum is σ = 6915467016. Its totient is φ = 4439558656.

The previous prime is 5656168723. The next prime is 5656168747. The reversal of 5656168745 is 5478616565.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1192459024 + 4463709721 = 34532^2 + 66811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5656168745 is a prime.

It is a super-3 number, since 3×5656168745³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5656168747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10671752 + ... + 10672281.

It is an arithmetic number, because the mean of its divisors is an integer number (864433377).

Almost surely, 2^5656168745 is an apocalyptic number.

It is an amenable number.

5656168745 is a deficient number, since it is larger than the sum of its proper divisors (1259298271).

5656168745 is a wasteful number, since it uses less digits than its factorization.

5656168745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344091.

The product of its digits is 6048000, while the sum is 53.

The square root of 5656168745 is about 75207.5045789980. The cubic root of 5656168745 is about 1781.7254599116.

The spelling of 5656168745 in words is "five billion, six hundred fifty-six million, one hundred sixty-eight thousand, seven hundred forty-five".