1560006665 has 8 divisors (see below), whose sum is σ = 2139437760. Its totient is φ = 1069718832.

The previous prime is 1560006629. The next prime is 1560006667. The reversal of 1560006665 is 5666000651.

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

It is not a de Polignac number, because 1560006665 - 2¹⁴ = 1559990281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 44571619 = 1560006665 / (1 + 5 + 6 + 0 + 0 + 0 + 6 + 6 + 6 + 5).

It is not an unprimeable number, because it can be changed into a prime (1560006667) 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, 22285775 + ... + 22285844.

It is an arithmetic number, because the mean of its divisors is an integer number (267429720).

Almost surely, 2^1560006665 is an apocalyptic number.

It is an amenable number.

1560006665 is a deficient number, since it is larger than the sum of its proper divisors (579431095).

1560006665 is an equidigital number, since it uses as much as digits as its factorization.

1560006665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44571631.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1560006665 is about 39496.9196900214. The cubic root of 1560006665 is about 1159.7796512198.

The spelling of 1560006665 in words is "one billion, five hundred sixty million, six thousand, six hundred sixty-five".