11742071556 has 24 divisors (see below), whose sum is σ = 27399919680. Its totient is φ = 3913773472.

The previous prime is 11742071491. The next prime is 11742071567. The reversal of 11742071556 is 65517024711.

11742071556 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 2×11742071556² (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, 347065 + ... + 379391.

It is an arithmetic number, because the mean of its divisors is an integer number (1141663320).

Almost surely, 2^11742071556 is an apocalyptic number.

It is an amenable number.

11742071556 is an abundant number, since it is smaller than the sum of its proper divisors (15657848124).

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

11742071556 is a wasteful number, since it uses less digits than its factorization.

11742071556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62603 (or 62601 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 11742071556 in words is "eleven billion, seven hundred forty-two million, seventy-one thousand, five hundred fifty-six".