1164163444 has 24 divisors (see below), whose sum is σ = 2079406728. Its totient is φ = 570086400.

The previous prime is 1164163439. The next prime is 1164163463. The reversal of 1164163444 is 4443614611.

It can be written as a sum of positive squares in 4 ways, for example, as 139523344 + 1024640100 = 11812^2 + 32010^2 .

It is a super-2 number, since 2×1164163444² = 2710553048691882272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122844 + ... + 131980.

It is an arithmetic number, because the mean of its divisors is an integer number (86641947).

Almost surely, 2^1164163444 is an apocalyptic number.

It is an amenable number.

1164163444 is a deficient number, since it is larger than the sum of its proper divisors (915243284).

1164163444 is a wasteful number, since it uses less digits than its factorization.

1164163444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9795 (or 9793 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 1164163444 is about 34119.8394486258. The cubic root of 1164163444 is about 1051.9731435939.

The spelling of 1164163444 in words is "one billion, one hundred sixty-four million, one hundred sixty-three thousand, four hundred forty-four".