11145151161 has 6 divisors (see below), whose sum is σ = 16098551690. Its totient is φ = 7430100768.

The previous prime is 11145151151. The next prime is 11145151169. The reversal of 11145151161 is 16115154111.

It is a happy number.

11145151161 is a `hidden beast` number, since 1 + 1 + 1 + 451 + 51 + 161 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9317075625 + 1828075536 = 96525^2 + 42756^2 .

It is not a de Polignac number, because 11145151161 - 2⁶ = 11145151097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11145151169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619175056 + ... + 619175073.

Almost surely, 2^11145151161 is an apocalyptic number.

It is an amenable number.

11145151161 is a deficient number, since it is larger than the sum of its proper divisors (4953400529).

11145151161 is a wasteful number, since it uses less digits than its factorization.

11145151161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238350135 (or 1238350132 counting only the distinct ones).

The product of its digits is 600, while the sum is 27.

The spelling of 11145151161 in words is "eleven billion, one hundred forty-five million, one hundred fifty-one thousand, one hundred sixty-one".