1361166763850 has 24 divisors (see below), whose sum is σ = 2557870913388. Its totient is φ = 538853644800.

The previous prime is 1361166763837. The next prime is 1361166763889. The reversal of 1361166763850 is 583676611631.

It can be written as a sum of positive squares in 6 ways, for example, as 455431970449 + 905734793401 = 674857^2 + 951701^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1361166763792 and 1361166763801.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 140321621 + ... + 140331320.

Almost surely, 2^{1361166763850} is an apocalyptic number.

1361166763850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1361166763850 is a deficient number, since it is larger than the sum of its proper divisors (1196704149538).

1361166763850 is a wasteful number, since it uses less digits than its factorization.

1361166763850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280653050 (or 280653045 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 1361166763850 in words is "one trillion, three hundred sixty-one billion, one hundred sixty-six million, seven hundred sixty-three thousand, eight hundred fifty".