1090265681165 has 16 divisors (see below), whose sum is σ = 1310855616000. Its totient is φ = 870522224832.

The previous prime is 1090265681143. The next prime is 1090265681207. The reversal of 1090265681165 is 5611865620901.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1090265681165 - 2¹² = 1090265677069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10242386 + ... + 10348284.

It is an arithmetic number, because the mean of its divisors is an integer number (81928476000).

Almost surely, 2^{1090265681165} is an apocalyptic number.

It is an amenable number.

1090265681165 is a deficient number, since it is larger than the sum of its proper divisors (220589934835).

1090265681165 is a wasteful number, since it uses less digits than its factorization.

1090265681165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109876.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 1090265681165 in words is "one trillion, ninety billion, two hundred sixty-five million, six hundred eighty-one thousand, one hundred sixty-five".