136655621366 has 32 divisors (see below), whose sum is σ = 225725712768. Its totient is φ = 61531424640.

The previous prime is 136655621357. The next prime is 136655621369. The reversal of 136655621366 is 663126556631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136655621369) 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 15 ways as a sum of consecutive naturals, for example, 4626641 + ... + 4656083.

It is an arithmetic number, because the mean of its divisors is an integer number (7053928524).

Almost surely, 2^136655621366 is an apocalyptic number.

136655621366 is a deficient number, since it is larger than the sum of its proper divisors (89070091402).

136655621366 is a wasteful number, since it uses less digits than its factorization.

136655621366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31436.

The product of its digits is 3499200, while the sum is 50.

The spelling of 136655621366 in words is "one hundred thirty-six billion, six hundred fifty-five million, six hundred twenty-one thousand, three hundred sixty-six".