11665056165560 has 32 divisors (see below), whose sum is σ = 29995858712160. Its totient is φ = 3999447828096.

The previous prime is 11665056165551. The next prime is 11665056165569. The reversal of 11665056165560 is 6556165056611.

It is an interprime number because it is at equal distance from previous prime (11665056165551) and next prime (11665056165569).

It is a super-2 number, since 2×11665056165560² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665056165569) 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, 20830457159 + ... + 20830457718.

It is an arithmetic number, because the mean of its divisors is an integer number (937370584755).

Almost surely, 2^{11665056165560} is an apocalyptic number.

11665056165560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11665056165560 is an abundant number, since it is smaller than the sum of its proper divisors (18330802546600).

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

11665056165560 is a wasteful number, since it uses less digits than its factorization.

11665056165560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41660914895 (or 41660914891 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 11665056165560 in words is "eleven trillion, six hundred sixty-five billion, fifty-six million, one hundred sixty-five thousand, five hundred sixty".