11005151556 has 24 divisors (see below), whose sum is σ = 29347071040. Its totient is φ = 3144328992.

The previous prime is 11005151543. The next prime is 11005151561. The reversal of 11005151556 is 65515150011.

11005151556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11005151556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65506771 + ... + 65506938.

Almost surely, 2^11005151556 is an apocalyptic number.

It is an amenable number.

11005151556 is an abundant number, since it is smaller than the sum of its proper divisors (18341919484).

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

11005151556 is a wasteful number, since it uses less digits than its factorization.

11005151556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131013723 (or 131013721 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11005151556 in words is "eleven billion, five million, one hundred fifty-one thousand, five hundred fifty-six".