1001061010556 has 24 divisors (see below), whose sum is σ = 1799725020576. Its totient is φ = 486861693120.

The previous prime is 1001061010529. The next prime is 1001061010559. The reversal of 1001061010556 is 6550101601001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001061010559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464936 + ... + 1489391.

It is an arithmetic number, because the mean of its divisors is an integer number (74988542524).

Almost surely, 2^{1001061010556} is an apocalyptic number.

It is an amenable number.

1001061010556 is a deficient number, since it is larger than the sum of its proper divisors (798664010020).

1001061010556 is a wasteful number, since it uses less digits than its factorization.

1001061010556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957829 (or 1957827 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

Adding to 1001061010556 its reverse (6550101601001), we get a palindrome (7551162611557).

The spelling of 1001061010556 in words is "one trillion, one billion, sixty-one million, ten thousand, five hundred fifty-six".