136617863452 has 24 divisors (see below), whose sum is σ = 274666291200. Its totient is φ = 58243963440.

The previous prime is 136617863441. The next prime is 136617863477. The reversal of 136617863452 is 254368716631.

It is a super-2 number, since 2×136617863452² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136617863452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12767452 + ... + 12778147.

It is an arithmetic number, because the mean of its divisors is an integer number (11444428800).

Almost surely, 2^136617863452 is an apocalyptic number.

It is an amenable number.

136617863452 is an abundant number, since it is smaller than the sum of its proper divisors (138048427748).

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

136617863452 is a wasteful number, since it uses less digits than its factorization.

136617863452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25545801 (or 25545799 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 136617863452 in words is "one hundred thirty-six billion, six hundred seventeen million, eight hundred sixty-three thousand, four hundred fifty-two".