1164211065 has 24 divisors (see below), whose sum is σ = 2020973760. Its totient is φ = 619987104.

The previous prime is 1164211043. The next prime is 1164211099. The reversal of 1164211065 is 5601124611.

1164211065 is a `hidden beast` number, since 1 + 1 + 642 + 1 + 10 + 6 + 5 = 666.

It is not a de Polignac number, because 1164211065 - 2⁶ = 1164211001 is a prime.

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, 11796 + ... + 49674.

It is an arithmetic number, because the mean of its divisors is an integer number (84207240).

Almost surely, 2^1164211065 is an apocalyptic number.

1164211065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1164211065 is a deficient number, since it is larger than the sum of its proper divisors (856762695).

1164211065 is a wasteful number, since it uses less digits than its factorization.

1164211065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38573 (or 38570 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1164211065 is about 34120.5372906114. The cubic root of 1164211065 is about 1051.9874873215.

Adding to 1164211065 its reverse (5601124611), we get a palindrome (6765335676).

The spelling of 1164211065 in words is "one billion, one hundred sixty-four million, two hundred eleven thousand, sixty-five".