136378701866 has 16 divisors (see below), whose sum is σ = 234910683360. Its totient is φ = 58727670480.

The previous prime is 136378701863. The next prime is 136378701881. The reversal of 136378701866 is 668107873631.

It is not an unprimeable number, because it can be changed into a prime (136378701863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163132001 + ... + 163132836.

It is an arithmetic number, because the mean of its divisors is an integer number (14681917710).

Almost surely, 2^136378701866 is an apocalyptic number.

136378701866 is a deficient number, since it is larger than the sum of its proper divisors (98531981494).

136378701866 is a wasteful number, since it uses less digits than its factorization.

136378701866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326264869.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 136378701866 in words is "one hundred thirty-six billion, three hundred seventy-eight million, seven hundred one thousand, eight hundred sixty-six".