136785192108220 has 48 divisors (see below), whose sum is σ = 292121469158400. Its totient is φ = 53785994103360.

The previous prime is 136785192108199. The next prime is 136785192108293. The reversal of 136785192108220 is 22801291587631.

It is a congruent number.

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, 91333801 + ... + 92819359.

It is an arithmetic number, because the mean of its divisors is an integer number (6085863940800).

Almost surely, 2^{136785192108220} is an apocalyptic number.

136785192108220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136785192108220 is an abundant number, since it is smaller than the sum of its proper divisors (155336277050180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136785192108220 is a wasteful number, since it uses less digits than its factorization.

136785192108220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563658 (or 1563656 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 136785192108220 in words is "one hundred thirty-six trillion, seven hundred eighty-five billion, one hundred ninety-two million, one hundred eight thousand, two hundred twenty".