1161065763500 has 24 divisors (see below), whose sum is σ = 2535767628576. Its totient is φ = 464426305200.

The previous prime is 1161065763449. The next prime is 1161065763521. The reversal of 1161065763500 is 53675601611.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161065264 + ... + 1161066263.

It is an arithmetic number, because the mean of its divisors is an integer number (105656984524).

Almost surely, 2^{1161065763500} is an apocalyptic number.

1161065763500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161065763500 is an abundant number, since it is smaller than the sum of its proper divisors (1374701865076).

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

1161065763500 is a wasteful number, since it uses less digits than its factorization.

1161065763500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322131546 (or 2322131534 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 1161065763500 in words is "one trillion, one hundred sixty-one billion, sixty-five million, seven hundred sixty-three thousand, five hundred".