1096388665 has 4 divisors (see below), whose sum is σ = 1315666404. Its totient is φ = 877110928.

The previous prime is 1096388663. The next prime is 1096388719. The reversal of 1096388665 is 5668836901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 410629696 + 685758969 = 20264^2 + 26187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1096388665 - 2¹ = 1096388663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1096388663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109638862 + ... + 109638871.

It is an arithmetic number, because the mean of its divisors is an integer number (328916601).

Almost surely, 2^1096388665 is an apocalyptic number.

It is an amenable number.

1096388665 is a deficient number, since it is larger than the sum of its proper divisors (219277739).

1096388665 is an equidigital number, since it uses as much as digits as its factorization.

1096388665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219277738.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 1096388665 is about 33111.7602220118. The cubic root of 1096388665 is about 1031.1492074616.

The spelling of 1096388665 in words is "one billion, ninety-six million, three hundred eighty-eight thousand, six hundred sixty-five".