5601313665 has 24 divisors (see below), whose sum is σ = 9751358760. Its totient is φ = 2974316544.

The previous prime is 5601313661. The next prime is 5601313667. The reversal of 5601313665 is 5663131065.

5601313665 is a `hidden beast` number, since 560 + 1 + 3 + 1 + 36 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 745453809 + 4855859856 = 27303^2 + 69684^2 .

It is not a de Polignac number, because 5601313665 - 2² = 5601313661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5601313661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261472 + ... + 282081.

It is an arithmetic number, because the mean of its divisors is an integer number (406306615).

Almost surely, 2^5601313665 is an apocalyptic number.

It is an amenable number.

5601313665 is a deficient number, since it is larger than the sum of its proper divisors (4150045095).

5601313665 is a wasteful number, since it uses less digits than its factorization.

5601313665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543793 (or 543790 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 5601313665 is about 74841.9245142721. The cubic root of 5601313665 is about 1775.9468507728.

The spelling of 5601313665 in words is "five billion, six hundred one million, three hundred thirteen thousand, six hundred sixty-five".