136121550133665 has 16 divisors (see below), whose sum is σ = 217994108544576. Its totient is φ = 72531617294400.

The previous prime is 136121550133627. The next prime is 136121550133697. The reversal of 136121550133665 is 566331055121631.

It is not a de Polignac number, because 136121550133665 - 2⁷ = 136121550133537 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 4158906646 + ... + 4158939375.

It is an arithmetic number, because the mean of its divisors is an integer number (13624631784036).

Almost surely, 2^{136121550133665} is an apocalyptic number.

136121550133665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136121550133665 is a deficient number, since it is larger than the sum of its proper divisors (81872558410911).

136121550133665 is a wasteful number, since it uses less digits than its factorization.

136121550133665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317847120.

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 136121550133665 in words is "one hundred thirty-six trillion, one hundred twenty-one billion, five hundred fifty million, one hundred thirty-three thousand, six hundred sixty-five".