260102665 has 8 divisors (see below), whose sum is σ = 312302088. Its totient is φ = 207962880.

The previous prime is 260102663. The next prime is 260102677. The reversal of 260102665 is 566201062.

It can be written as a sum of positive squares in 4 ways, for example, as 21307456 + 238795209 = 4616^2 + 15453^2 .

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

It is not a de Polignac number, because 260102665 - 2¹ = 260102663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260102663) 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, 4672 + ... + 23281.

It is an arithmetic number, because the mean of its divisors is an integer number (39037761).

Almost surely, 2^260102665 is an apocalyptic number.

It is an amenable number.

260102665 is a deficient number, since it is larger than the sum of its proper divisors (52199423).

260102665 is a wasteful number, since it uses less digits than its factorization.

260102665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29819.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 260102665 is about 16127.6986889016. The cubic root of 260102665 is about 638.3344264983.

The spelling of 260102665 in words is "two hundred sixty million, one hundred two thousand, six hundred sixty-five".