1329165044 has 6 divisors (see below), whose sum is σ = 2326038834. Its totient is φ = 664582520.

The previous prime is 1329165041. The next prime is 1329165053. The reversal of 1329165044 is 4405619231.

It can be written as a sum of positive squares in only one way, i.e., 1104764644 + 224400400 = 33238^2 + 14980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1329164995 and 1329165013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329165041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166145627 + ... + 166145634.

It is an arithmetic number, because the mean of its divisors is an integer number (387673139).

Almost surely, 2^1329165044 is an apocalyptic number.

It is an amenable number.

1329165044 is a deficient number, since it is larger than the sum of its proper divisors (996873790).

1329165044 is a wasteful number, since it uses less digits than its factorization.

1329165044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332291265 (or 332291263 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1329165044 is about 36457.7158362945. The cubic root of 1329165044 is about 1099.4942700033.

The spelling of 1329165044 in words is "one billion, three hundred twenty-nine million, one hundred sixty-five thousand, forty-four".