1165668105 has 48 divisors (see below), whose sum is σ = 2173051584. Its totient is φ = 532022400.

The previous prime is 1165668071. The next prime is 1165668113. The reversal of 1165668105 is 5018665611.

It is not a de Polignac number, because 1165668105 - 2⁶ = 1165668041 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 802630 + ... + 804080.

It is an arithmetic number, because the mean of its divisors is an integer number (45271908).

Almost surely, 2^1165668105 is an apocalyptic number.

1165668105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1165668105 is a deficient number, since it is larger than the sum of its proper divisors (1007383479).

1165668105 is a wasteful number, since it uses less digits than its factorization.

1165668105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2559 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1165668105 is about 34141.8819780047. The cubic root of 1165668105 is about 1052.4261674708.

The spelling of 1165668105 in words is "one billion, one hundred sixty-five million, six hundred sixty-eight thousand, one hundred five".