2011000603556 has 36 divisors (see below), whose sum is σ = 4094176665600. Its totient is φ = 861782873616.

The previous prime is 2011000603523. The next prime is 2011000603583. The reversal of 2011000603556 is 6553060001102.

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 11 ways as a sum of consecutive naturals, for example, 1859165 + ... + 2734683.

It is an arithmetic number, because the mean of its divisors is an integer number (113727129600).

Almost surely, 2^{2011000603556} is an apocalyptic number.

It is an amenable number.

2011000603556 is an abundant number, since it is smaller than the sum of its proper divisors (2083176062044).

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

2011000603556 is a wasteful number, since it uses less digits than its factorization.

2011000603556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887256 (or 887247 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 2011000603556 its reverse (6553060001102), we get a palindrome (8564060604658).

The spelling of 2011000603556 in words is "two trillion, eleven billion, six hundred three thousand, five hundred fifty-six".