120356565999999 has 16 divisors (see below), whose sum is σ = 191374415503872. Its totient is φ = 65784955328928.

The previous prime is 120356565999947. The next prime is 120356566000003. The reversal of 120356565999999 is 999999565653021.

It is not a de Polignac number, because 120356565999999 - 2²⁷ = 120356431782271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120356565999599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124592717944 + ... + 124592718909.

It is an arithmetic number, because the mean of its divisors is an integer number (11960900968992).

Almost surely, 2^{120356565999999} is an apocalyptic number.

120356565999999 is a deficient number, since it is larger than the sum of its proper divisors (71017849503873).

120356565999999 is a wasteful number, since it uses less digits than its factorization.

120356565999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249185436886.

The product of its (nonzero) digits is 14348907000, while the sum is 87.

The spelling of 120356565999999 in words is "one hundred twenty trillion, three hundred fifty-six billion, five hundred sixty-five million, nine hundred ninety-nine thousand, nine hundred ninety-nine".