1166993950140 has 72 divisors (see below), whose sum is σ = 3540240784080. Its totient is φ = 311166814464.

The previous prime is 1166993950093. The next prime is 1166993950151. The reversal of 1166993950140 is 410593996611.

It is a happy number.

1166993950140 is a `hidden beast` number, since 1 + 1 + 6 + 6 + 9 + 93 + 9 + 501 + 40 = 666.

It is a congruent 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, 1477747 + ... + 2125493.

It is an arithmetic number, because the mean of its divisors is an integer number (49170010890).

Almost surely, 2^{1166993950140} is an apocalyptic number.

1166993950140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166993950140 is an abundant number, since it is smaller than the sum of its proper divisors (2373246833940).

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

1166993950140 is a wasteful number, since it uses less digits than its factorization.

1166993950140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657771 (or 657766 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 1166993950140 in words is "one trillion, one hundred sixty-six billion, nine hundred ninety-three million, nine hundred fifty thousand, one hundred forty".