601163665 has 8 divisors (see below), whose sum is σ = 722784168. Its totient is φ = 480005760.

The previous prime is 601163659. The next prime is 601163669. The reversal of 601163665 is 566361106.

It can be written as a sum of positive squares in 4 ways, for example, as 374544 + 600789121 = 612^2 + 24511^2 .

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

It is not a de Polignac number, because 601163665 - 2³ = 601163657 is a prime.

It is a super-2 number, since 2×601163665² = 722795504232464450, which contains 22 as substring.

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 601163665.

It is not an unprimeable number, because it can be changed into a prime (601163669) 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, 112782 + ... + 117991.

It is an arithmetic number, because the mean of its divisors is an integer number (90348021).

Almost surely, 2^601163665 is an apocalyptic number.

It is an amenable number.

601163665 is a deficient number, since it is larger than the sum of its proper divisors (121620503).

601163665 is a wasteful number, since it uses less digits than its factorization.

601163665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231299.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 601163665 is about 24518.6391343402. The cubic root of 601163665 is about 843.9775759973.

The spelling of 601163665 in words is "six hundred one million, one hundred sixty-three thousand, six hundred sixty-five".