11156642406436 has 12 divisors (see below), whose sum is σ = 19544741033328. Its totient is φ = 5572430682632.

The previous prime is 11156642406409. The next prime is 11156642406439. The reversal of 11156642406436 is 63460424665111.

It is a super-2 number, since 2×11156642406436² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11156642406436.

It is not an unprimeable number, because it can be changed into a prime (11156642406439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472625886 + ... + 1472633461.

It is an arithmetic number, because the mean of its divisors is an integer number (1628728419444).

Almost surely, 2^{11156642406436} is an apocalyptic number.

It is an amenable number.

11156642406436 is a deficient number, since it is larger than the sum of its proper divisors (8388098626892).

11156642406436 is a wasteful number, since it uses less digits than its factorization.

11156642406436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945260298 (or 2945260296 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 11156642406436 in words is "eleven trillion, one hundred fifty-six billion, six hundred forty-two million, four hundred six thousand, four hundred thirty-six".