1001001056056 has 16 divisors (see below), whose sum is σ = 1887725982600. Its totient is φ = 497607460704.

The previous prime is 1001001056051. The next prime is 1001001056059. The reversal of 1001001056056 is 6506501001001.

It is a super-2 number, since 2×1001001056056² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1001001056056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001001056051) 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, 361631946 + ... + 361634713.

Almost surely, 2^{1001001056056} is an apocalyptic number.

It is an amenable number.

1001001056056 is a deficient number, since it is larger than the sum of its proper divisors (886724926544).

1001001056056 is a wasteful number, since it uses less digits than its factorization.

1001001056056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723266838 (or 723266834 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 1001001056056 its reverse (6506501001001), we get a palindrome (7507502057057).

The spelling of 1001001056056 in words is "one trillion, one billion, one million, fifty-six thousand, fifty-six".