11612162206161 has 48 divisors (see below), whose sum is σ = 18611517899520. Its totient is φ = 6917116001760.

The previous prime is 11612162206147. The next prime is 11612162206181. The reversal of 11612162206161 is 16160226121611.

11612162206161 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 2 + 16 + 2 + 20 + 616 + 1 = 666.

It is not a de Polignac number, because 11612162206161 - 2⁵ = 11612162206129 is a prime.

It is a super-2 number, since 2×11612162206161² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11612162206181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31985886 + ... + 32346888.

It is an arithmetic number, because the mean of its divisors is an integer number (387739956240).

Almost surely, 2^{11612162206161} is an apocalyptic number.

11612162206161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11612162206161 is a deficient number, since it is larger than the sum of its proper divisors (6999355693359).

11612162206161 is a wasteful number, since it uses less digits than its factorization.

11612162206161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366586 (or 366583 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

Adding to 11612162206161 its reverse (16160226121611), we get a palindrome (27772388327772).

The spelling of 11612162206161 in words is "eleven trillion, six hundred twelve billion, one hundred sixty-two million, two hundred six thousand, one hundred sixty-one".