1168065945 has 24 divisors (see below), whose sum is σ = 2131209600. Its totient is φ = 590180256.

The previous prime is 1168065931. The next prime is 1168065953. The reversal of 1168065945 is 5495608611.

It is not a de Polignac number, because 1168065945 - 2⁷ = 1168065817 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1168065945.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682225 + ... + 683934.

It is an arithmetic number, because the mean of its divisors is an integer number (88800400).

Almost surely, 2^1168065945 is an apocalyptic number.

1168065945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1168065945 is a deficient number, since it is larger than the sum of its proper divisors (963143655).

1168065945 is a wasteful number, since it uses less digits than its factorization.

1168065945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366189 (or 1366186 counting only the distinct ones).

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

The square root of 1168065945 is about 34176.9797524591. The cubic root of 1168065945 is about 1053.1473050364.

The spelling of 1168065945 in words is "one billion, one hundred sixty-eight million, sixty-five thousand, nine hundred forty-five".