1121162150556 has 36 divisors (see below), whose sum is σ = 3238912880112. Its totient is φ = 320332042944.

The previous prime is 1121162150551. The next prime is 1121162150593. The reversal of 1121162150556 is 6550512611211.

1121162150556 is a `hidden beast` number, since 1 + 1 + 21 + 1 + 621 + 5 + 0 + 5 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1121162150556² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1121162150556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121162150551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224527825 + ... + 2224528328.

Almost surely, 2^{1121162150556} is an apocalyptic number.

It is an amenable number.

1121162150556 is an abundant number, since it is smaller than the sum of its proper divisors (2117750729556).

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

1121162150556 is a wasteful number, since it uses less digits than its factorization.

1121162150556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449056170 (or 4449056165 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

Adding to 1121162150556 its reverse (6550512611211), we get a palindrome (7671674761767).

The spelling of 1121162150556 in words is "one trillion, one hundred twenty-one billion, one hundred sixty-two million, one hundred fifty thousand, five hundred fifty-six".