11161205500156 has 12 divisors (see below), whose sum is σ = 19538596564200. Its totient is φ = 5578749338960.

The previous prime is 11161205500147. The next prime is 11161205500169. The reversal of 11161205500156 is 65100550216111.

11161205500156 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 2×11161205500156² (a number of 27 digits) contains 22 as substring.

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, 463339231 + ... + 463363318.

It is an arithmetic number, because the mean of its divisors is an integer number (1628216380350).

Almost surely, 2^{11161205500156} is an apocalyptic number.

It is an amenable number.

11161205500156 is a deficient number, since it is larger than the sum of its proper divisors (8377391064044).

11161205500156 is a wasteful number, since it uses less digits than its factorization.

11161205500156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926705564 (or 926705562 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

Adding to 11161205500156 its reverse (65100550216111), we get a palindrome (76261755716267).

The spelling of 11161205500156 in words is "eleven trillion, one hundred sixty-one billion, two hundred five million, five hundred thousand, one hundred fifty-six".