11151655665161 has 8 divisors (see below), whose sum is σ = 12170302918464. Its totient is φ = 10133818474320.

The previous prime is 11151655665133. The next prime is 11151655665211. The reversal of 11151655665161 is 16156655615111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11151655665161 - 2⁶ = 11151655665097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11151655665131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202486826 + ... + 202541891.

It is an arithmetic number, because the mean of its divisors is an integer number (1521287864808).

Almost surely, 2^{11151655665161} is an apocalyptic number.

11151655665161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11151655665161 is a deficient number, since it is larger than the sum of its proper divisors (1018647253303).

11151655665161 is a wasteful number, since it uses less digits than its factorization.

11151655665161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405031231.

The product of its digits is 810000, while the sum is 50.

The spelling of 11151655665161 in words is "eleven trillion, one hundred fifty-one billion, six hundred fifty-five million, six hundred sixty-five thousand, one hundred sixty-one".