1169116728820 has 12 divisors (see below), whose sum is σ = 2455145130564. Its totient is φ = 467646691520.

The previous prime is 1169116728817. The next prime is 1169116728827. The reversal of 1169116728820 is 288276119611.

It can be written as a sum of positive squares in 2 ways, for example, as 637001919376 + 532114809444 = 798124^2 + 729462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1169116728827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29227918201 + ... + 29227918240.

It is an arithmetic number, because the mean of its divisors is an integer number (204595427547).

Almost surely, 2^{1169116728820} is an apocalyptic number.

1169116728820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1169116728820 is an abundant number, since it is smaller than the sum of its proper divisors (1286028401744).

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

1169116728820 is a wasteful number, since it uses less digits than its factorization.

1169116728820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58455836450 (or 58455836448 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 1169116728820 in words is "one trillion, one hundred sixty-nine billion, one hundred sixteen million, seven hundred twenty-eight thousand, eight hundred twenty".