1205755650013 has 8 divisors (see below), whose sum is σ = 1222473772800. Its totient is φ = 1189073912208.

The previous prime is 1205755649971. The next prime is 1205755650023. The reversal of 1205755650013 is 3100565575021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1205755650013 - 2²⁵ = 1205722095581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205755650023) 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 7 ways as a sum of consecutive naturals, for example, 9029506 + ... + 9162067.

It is an arithmetic number, because the mean of its divisors is an integer number (152809221600).

Almost surely, 2^{1205755650013} is an apocalyptic number.

It is an amenable number.

1205755650013 is a deficient number, since it is larger than the sum of its proper divisors (16718122787).

1205755650013 is an equidigital number, since it uses as much as digits as its factorization.

1205755650013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18192491.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 1205755650013 in words is "one trillion, two hundred five billion, seven hundred fifty-five million, six hundred fifty thousand, thirteen".