4003644053536 has 24 divisors (see below), whose sum is σ = 7887230245440. Its totient is φ = 2000537959488.

The previous prime is 4003644053533. The next prime is 4003644053543. The reversal of 4003644053536 is 6353504463004.

It is a junction number, because it is equal to n+sod(n) for n = 4003644053492 and 4003644053501.

It is not an unprimeable number, because it can be changed into a prime (4003644053533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40076436 + ... + 40176211.

It is an arithmetic number, because the mean of its divisors is an integer number (328634593560).

Almost surely, 2^{4003644053536} is an apocalyptic number.

It is an amenable number.

4003644053536 is a deficient number, since it is larger than the sum of its proper divisors (3883586191904).

4003644053536 is a wasteful number, since it uses less digits than its factorization.

4003644053536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80254216 (or 80254208 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 4003644053536 in words is "four trillion, three billion, six hundred forty-four million, fifty-three thousand, five hundred thirty-six".