1166510011650 has 96 divisors (see below), whose sum is σ = 2954982297600. Its totient is φ = 304400819520.

The previous prime is 1166510011627. The next prime is 1166510011651. The reversal of 1166510011650 is 561100156611.

It is not an unprimeable number, because it can be changed into a prime (1166510011651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64843957 + ... + 64861943.

It is an arithmetic number, because the mean of its divisors is an integer number (30781065600).

Almost surely, 2^{1166510011650} is an apocalyptic number.

1166510011650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166510011650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477491148800).

1166510011650 is an abundant number, since it is smaller than the sum of its proper divisors (1788472285950).

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

1166510011650 is a wasteful number, since it uses less digits than its factorization.

1166510011650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27248 (or 27243 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 1166510011650 in words is "one trillion, one hundred sixty-six billion, five hundred ten million, eleven thousand, six hundred fifty".