1166116501100 has 72 divisors (see below), whose sum is σ = 2679644304288. Its totient is φ = 438956108800.

The previous prime is 1166116501093. The next prime is 1166116501111. The reversal of 1166116501100 is 11056116611.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16047449 + ... + 16119951.

It is an arithmetic number, because the mean of its divisors is an integer number (37217282004).

Almost surely, 2^{1166116501100} is an apocalyptic number.

1166116501100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166116501100 is an abundant number, since it is smaller than the sum of its proper divisors (1513527803188).

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

1166116501100 is a wasteful number, since it uses less digits than its factorization.

1166116501100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81995 (or 81988 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 29.

The spelling of 1166116501100 in words is "one trillion, one hundred sixty-six billion, one hundred sixteen million, five hundred one thousand, one hundred".