2601560665 has 8 divisors (see below), whose sum is σ = 3405679488. Its totient is φ = 1892044080.

The previous prime is 2601560651. The next prime is 2601560669. The reversal of 2601560665 is 5660651062.

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

It is not a de Polignac number, because 2601560665 - 2¹⁵ = 2601527897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2601560669) 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, 23650497 + ... + 23650606.

It is an arithmetic number, because the mean of its divisors is an integer number (425709936).

Almost surely, 2^2601560665 is an apocalyptic number.

It is an amenable number.

2601560665 is a deficient number, since it is larger than the sum of its proper divisors (804118823).

2601560665 is a wasteful number, since it uses less digits than its factorization.

2601560665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47301119.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2601560665 is about 51005.4964195037. The cubic root of 2601560665 is about 1375.3439430497.

The spelling of 2601560665 in words is "two billion, six hundred one million, five hundred sixty thousand, six hundred sixty-five".