1166155166660 has 24 divisors (see below), whose sum is σ = 2671555473216. Its totient is φ = 424056424160.

The previous prime is 1166155166641. The next prime is 1166155166681. The reversal of 1166155166660 is 666615516611.

It is a junction number, because it is equal to n+sod(n) for n = 1166155166599 and 1166155166608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650352432 + ... + 2650352871.

It is an arithmetic number, because the mean of its divisors is an integer number (111314811384).

Almost surely, 2^{1166155166660} is an apocalyptic number.

1166155166660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166155166660 is an abundant number, since it is smaller than the sum of its proper divisors (1505400306556).

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

1166155166660 is a wasteful number, since it uses less digits than its factorization.

1166155166660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300705323 (or 5300705321 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 1166155166660 in words is "one trillion, one hundred sixty-six billion, one hundred fifty-five million, one hundred sixty-six thousand, six hundred sixty".