11156540536 has 16 divisors (see below), whose sum is σ = 22019488200. Its totient is φ = 5284677024.

The previous prime is 11156540491. The next prime is 11156540623. The reversal of 11156540536 is 63504565111.

It is a super-2 number, since 2×11156540536² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11156540495 and 11156540504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36698995 + ... + 36699298.

Almost surely, 2^11156540536 is an apocalyptic number.

It is an amenable number.

11156540536 is a deficient number, since it is larger than the sum of its proper divisors (10862947664).

11156540536 is a wasteful number, since it uses less digits than its factorization.

11156540536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73398318 (or 73398314 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 11156540536 in words is "eleven billion, one hundred fifty-six million, five hundred forty thousand, five hundred thirty-six".