1166545776740 has 48 divisors (see below), whose sum is σ = 2467942780800. Its totient is φ = 463153842432.

The previous prime is 1166545776727. The next prime is 1166545776743. The reversal of 1166545776740 is 476775456611.

It is a self number, because there is not a number n which added to its sum of digits gives 1166545776740.

It is not an unprimeable number, because it can be changed into a prime (1166545776743) 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, 12516392 + ... + 12609248.

It is an arithmetic number, because the mean of its divisors is an integer number (51415474600).

Almost surely, 2^{1166545776740} is an apocalyptic number.

1166545776740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166545776740 is an abundant number, since it is smaller than the sum of its proper divisors (1301397004060).

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

1166545776740 is a wasteful number, since it uses less digits than its factorization.

1166545776740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97524 (or 97522 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 59.

The spelling of 1166545776740 in words is "one trillion, one hundred sixty-six billion, five hundred forty-five million, seven hundred seventy-six thousand, seven hundred forty".