11666111151120 has 80 divisors (see below), whose sum is σ = 36169029766080. Its totient is φ = 3110611558912.

The previous prime is 11666111151067. The next prime is 11666111151127. The reversal of 11666111151120 is 2115111166611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×11666111151120² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666111151127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612915 + ... + 4869074.

It is an arithmetic number, because the mean of its divisors is an integer number (452112872076).

Almost surely, 2^{11666111151120} is an apocalyptic number.

11666111151120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11666111151120 is an abundant number, since it is smaller than the sum of its proper divisors (24502918614960).

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

11666111151120 is a wasteful number, since it uses less digits than its factorization.

11666111151120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490872 (or 5490866 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 33.

The spelling of 11666111151120 in words is "eleven trillion, six hundred sixty-six billion, one hundred eleven million, one hundred fifty-one thousand, one hundred twenty".