1164320055 has 32 divisors (see below), whose sum is σ = 2191665600. Its totient is φ = 584441856.

The previous prime is 1164320029. The next prime is 1164320063. The reversal of 1164320055 is 5500234611.

1164320055 is a `hidden beast` number, since 11 + 643 + 2 + 0 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 1164320055 - 2⁵ = 1164320023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251370 + ... + 255959.

It is an arithmetic number, because the mean of its divisors is an integer number (68489550).

Almost surely, 2^1164320055 is an apocalyptic number.

1164320055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1164320055 is a deficient number, since it is larger than the sum of its proper divisors (1027345545).

1164320055 is a wasteful number, since it uses less digits than its factorization.

1164320055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507360 (or 507354 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1164320055 is about 34122.1343851758. The cubic root of 1164320055 is about 1052.0203142839.

Adding to 1164320055 its reverse (5500234611), we get a palindrome (6664554666).

The spelling of 1164320055 in words is "one billion, one hundred sixty-four million, three hundred twenty thousand, fifty-five".