1011005506056 has 128 divisors (see below), whose sum is σ = 3176973434880. Its totient is φ = 260965622016.

The previous prime is 1011005506031. The next prime is 1011005506061. The reversal of 1011005506056 is 6506055001101.

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 31 ways as a sum of consecutive naturals, for example, 4821976 + ... + 5027271.

It is an arithmetic number, because the mean of its divisors is an integer number (24820104960).

Almost surely, 2^{1011005506056} is an apocalyptic number.

It is an amenable number.

1011005506056 is an abundant number, since it is smaller than the sum of its proper divisors (2165967928824).

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

1011005506056 is a wasteful number, since it uses less digits than its factorization.

1011005506056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849323 (or 9849319 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 1011005506056 in words is "one trillion, eleven billion, five million, five hundred six thousand, fifty-six".