136623109608 has 24 divisors (see below), whose sum is σ = 370020922050. Its totient is φ = 45541036512.

The previous prime is 136623109603. The next prime is 136623109621. The reversal of 136623109608 is 806901326631.

136623109608 is a `hidden beast` number, since 1 + 3 + 6 + 6 + 2 + 31 + 0 + 9 + 608 = 666.

It can be written as a sum of positive squares in only one way, i.e., 134734511844 + 1888597764 = 367062^2 + 43458^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (136623109603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 948771523 + ... + 948771666.

Almost surely, 2^136623109608 is an apocalyptic number.

136623109608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136623109608 is an abundant number, since it is smaller than the sum of its proper divisors (233397812442).

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

136623109608 is a wasteful number, since it uses less digits than its factorization.

136623109608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897543201 (or 1897543194 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 136623109608 in words is "one hundred thirty-six billion, six hundred twenty-three million, one hundred nine thousand, six hundred eight".