1095859661 has 16 divisors (see below), whose sum is σ = 1276176384. Its totient is φ = 931793664.

The previous prime is 1095859657. The next prime is 1095859663. The reversal of 1095859661 is 1669585901.

It is not a de Polignac number, because 1095859661 - 2² = 1095859657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095859663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42365 + ... + 63138.

It is an arithmetic number, because the mean of its divisors is an integer number (79761024).

Almost surely, 2^1095859661 is an apocalyptic number.

It is an amenable number.

1095859661 is a deficient number, since it is larger than the sum of its proper divisors (180316723).

1095859661 is a wasteful number, since it uses less digits than its factorization.

1095859661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105580.

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 1095859661 is about 33103.7710993778. The cubic root of 1095859661 is about 1030.9833387244.

The spelling of 1095859661 in words is "one billion, ninety-five million, eight hundred fifty-nine thousand, six hundred sixty-one".