260100665 has 16 divisors (see below), whose sum is σ = 342990720. Its totient is φ = 187777920.

The previous prime is 260100661. The next prime is 260100667. The reversal of 260100665 is 566001062.

It is not a de Polignac number, because 260100665 - 2² = 260100661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260100661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9725 + ... + 24794.

It is an arithmetic number, because the mean of its divisors is an integer number (21436920).

Almost surely, 2^260100665 is an apocalyptic number.

It is an amenable number.

260100665 is a deficient number, since it is larger than the sum of its proper divisors (82890055).

260100665 is a wasteful number, since it uses less digits than its factorization.

260100665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34672.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 260100665 is about 16127.6366836558. The cubic root of 260100665 is about 638.3327903852.

The spelling of 260100665 in words is "two hundred sixty million, one hundred thousand, six hundred sixty-five".