136523336816 has 20 divisors (see below), whose sum is σ = 267862245600. Its totient is φ = 67397596032.

The previous prime is 136523336771. The next prime is 136523336821. The reversal of 136523336816 is 618633325631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54003221 + ... + 54005748.

It is an arithmetic number, because the mean of its divisors is an integer number (13393112280).

Almost surely, 2^136523336816 is an apocalyptic number.

136523336816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

136523336816 is a deficient number, since it is larger than the sum of its proper divisors (131338908784).

136523336816 is a wasteful number, since it uses less digits than its factorization.

136523336816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108009056 (or 108009050 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 47.

The spelling of 136523336816 in words is "one hundred thirty-six billion, five hundred twenty-three million, three hundred thirty-six thousand, eight hundred sixteen".