1095664815 has 48 divisors (see below), whose sum is σ = 2181943296. Its totient is φ = 498225600.

The previous prime is 1095664793. The next prime is 1095664873. The reversal of 1095664815 is 5184665901.

1095664815 is a `hidden beast` number, since 1 + 0 + 9 + 566 + 4 + 81 + 5 = 666.

1095664815 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1095664815 - 2¹² = 1095660719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51060 + ... + 69270.

It is an arithmetic number, because the mean of its divisors is an integer number (45457152).

Almost surely, 2^1095664815 is an apocalyptic number.

1095664815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1095664815 is a deficient number, since it is larger than the sum of its proper divisors (1086278481).

1095664815 is a wasteful number, since it uses less digits than its factorization.

1095664815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18420 (or 18417 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1095664815 is about 33100.8280107915. The cubic root of 1095664815 is about 1030.9222314817.

The spelling of 1095664815 in words is "one billion, ninety-five million, six hundred sixty-four thousand, eight hundred fifteen".