1005550561056 has 24 divisors (see below), whose sum is σ = 2639570223024. Its totient is φ = 335183520320.

The previous prime is 1005550561021. The next prime is 1005550561073. The reversal of 1005550561056 is 6501650555001.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1005550561056² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 5237242410 + ... + 5237242601.

It is an arithmetic number, because the mean of its divisors is an integer number (109982092626).

Almost surely, 2^{1005550561056} is an apocalyptic number.

1005550561056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1005550561056 is an abundant number, since it is smaller than the sum of its proper divisors (1634019661968).

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

1005550561056 is a wasteful number, since it uses less digits than its factorization.

1005550561056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474485024 (or 10474485016 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 1005550561056 in words is "one trillion, five billion, five hundred fifty million, five hundred sixty-one thousand, fifty-six".