1329165642 has 32 divisors (see below), whose sum is σ = 3142857600. Its totient is φ = 366666048.

The previous prime is 1329165619. The next prime is 1329165659. The reversal of 1329165642 is 2465619231.

It is a self number, because there is not a number n which added to its sum of digits gives 1329165642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544417 + ... + 546852.

It is an arithmetic number, because the mean of its divisors is an integer number (98214300).

Almost surely, 2^1329165642 is an apocalyptic number.

1329165642 is an abundant number, since it is smaller than the sum of its proper divisors (1813691958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1329165642 is a wasteful number, since it uses less digits than its factorization.

1329165642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091310.

The product of its digits is 77760, while the sum is 39.

The square root of 1329165642 is about 36457.7240375754. The cubic root of 1329165642 is about 1099.4944348932.

The spelling of 1329165642 in words is "one billion, three hundred twenty-nine million, one hundred sixty-five thousand, six hundred forty-two".