136553166321 has 32 divisors (see below), whose sum is σ = 214044042240. Its totient is φ = 76342459200.

The previous prime is 136553166313. The next prime is 136553166331. The reversal of 136553166321 is 123661355631.

It is a happy number.

It is not a de Polignac number, because 136553166321 - 2³ = 136553166313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136553166331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542890 + ... + 753548.

It is an arithmetic number, because the mean of its divisors is an integer number (6688876320).

Almost surely, 2^136553166321 is an apocalyptic number.

136553166321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136553166321 is a deficient number, since it is larger than the sum of its proper divisors (77490875919).

136553166321 is a wasteful number, since it uses less digits than its factorization.

136553166321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212197.

The product of its digits is 291600, while the sum is 42.

The spelling of 136553166321 in words is "one hundred thirty-six billion, five hundred fifty-three million, one hundred sixty-six thousand, three hundred twenty-one".