1165642022004 has 24 divisors (see below), whose sum is σ = 2723872757760. Its totient is φ = 387970001664.

The previous prime is 1165642021993. The next prime is 1165642022059. The reversal of 1165642022004 is 4002202465611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72158964 + ... + 72175115.

It is an arithmetic number, because the mean of its divisors is an integer number (113494698240).

Almost surely, 2^{1165642022004} is an apocalyptic number.

It is an amenable number.

1165642022004 is an abundant number, since it is smaller than the sum of its proper divisors (1558230735756).

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

1165642022004 is a wasteful number, since it uses less digits than its factorization.

1165642022004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144334759 (or 144334757 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 1165642022004 its reverse (4002202465611), we get a palindrome (5167844487615).

The spelling of 1165642022004 in words is "one trillion, one hundred sixty-five billion, six hundred forty-two million, twenty-two thousand, four".