1366835763121 has 32 divisors (see below), whose sum is σ = 1478916914688. Its totient is φ = 1258583961600.

The previous prime is 1366835763089. The next prime is 1366835763127. The reversal of 1366835763121 is 1213675386631.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1366835763121 - 2⁵ = 1366835763089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366835763127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139226605 + ... + 139236421.

It is an arithmetic number, because the mean of its divisors is an integer number (46216153584).

Almost surely, 2^{1366835763121} is an apocalyptic number.

It is an amenable number.

1366835763121 is a deficient number, since it is larger than the sum of its proper divisors (112081151567).

1366835763121 is a wasteful number, since it uses less digits than its factorization.

1366835763121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10801.

The product of its digits is 3265920, while the sum is 52.

The spelling of 1366835763121 in words is "one trillion, three hundred sixty-six billion, eight hundred thirty-five million, seven hundred sixty-three thousand, one hundred twenty-one".