11156142522 has 24 divisors (see below), whose sum is σ = 25955107776. Its totient is φ = 3187469208.

The previous prime is 11156142427. The next prime is 11156142523. The reversal of 11156142522 is 22524165111.

It is a self number, because there is not a number n which added to its sum of digits gives 11156142522.

It is not an unprimeable number, because it can be changed into a prime (11156142523) by changing a digit.

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, 18972738 + ... + 18973325.

It is an arithmetic number, because the mean of its divisors is an integer number (1081462824).

Almost surely, 2^11156142522 is an apocalyptic number.

11156142522 is an abundant number, since it is smaller than the sum of its proper divisors (14798965254).

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

11156142522 is a wasteful number, since it uses less digits than its factorization.

11156142522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37946082 (or 37946075 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The spelling of 11156142522 in words is "eleven billion, one hundred fifty-six million, one hundred forty-two thousand, five hundred twenty-two".