1004144561536 has 32 divisors (see below), whose sum is σ = 2000538335880. Its totient is φ = 502048665600.

The previous prime is 1004144561527. The next prime is 1004144561593. The reversal of 1004144561536 is 6351654414001.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2726160 + ... + 3072496.

Almost surely, 2^{1004144561536} is an apocalyptic number.

1004144561536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1004144561536 is a deficient number, since it is larger than the sum of its proper divisors (996393774344).

1004144561536 is an equidigital number, since it uses as much as digits as its factorization.

1004144561536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369002 (or 368990 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 1004144561536 its reverse (6351654414001), we get a palindrome (7355798975537).

The spelling of 1004144561536 in words is "one trillion, four billion, one hundred forty-four million, five hundred sixty-one thousand, five hundred thirty-six".