8103478665 has 16 divisors (see below), whose sum is σ = 12977411328. Its totient is φ = 4317906816.

The previous prime is 8103478637. The next prime is 8103478679. The reversal of 8103478665 is 5668743018.

It is not a de Polignac number, because 8103478665 - 2¹⁵ = 8103445897 is a prime.

It is a super-2 number, since 2×8103478665² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229777 + ... + 262686.

It is an arithmetic number, because the mean of its divisors is an integer number (811088208).

Almost surely, 2^8103478665 is an apocalyptic number.

It is an amenable number.

8103478665 is a deficient number, since it is larger than the sum of its proper divisors (4873932663).

8103478665 is a wasteful number, since it uses less digits than its factorization.

8103478665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493568.

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 8103478665 is about 90019.3238421618. The cubic root of 8103478665 is about 2008.5863069975.

The spelling of 8103478665 in words is "eight billion, one hundred three million, four hundred seventy-eight thousand, six hundred sixty-five".