1166011055500 has 48 divisors (see below), whose sum is σ = 2546685741600. Its totient is φ = 466382884800.

The previous prime is 1166011055483. The next prime is 1166011055501. The reversal of 1166011055500 is 55501106611.

It is not an unprimeable number, because it can be changed into a prime (1166011055501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14975671 + ... + 15053329.

It is an arithmetic number, because the mean of its divisors is an integer number (53055952950).

Almost surely, 2^{1166011055500} is an apocalyptic number.

1166011055500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166011055500 is an abundant number, since it is smaller than the sum of its proper divisors (1380674686100).

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

1166011055500 is a wasteful number, since it uses less digits than its factorization.

1166011055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107707 (or 107695 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 1166011055500 in words is "one trillion, one hundred sixty-six billion, eleven million, fifty-five thousand, five hundred".