136666542054 has 64 divisors (see below), whose sum is σ = 324507036672. Its totient is φ = 37558617600.

The previous prime is 136666542037. The next prime is 136666542163. The reversal of 136666542054 is 450245666631.

It is a junction number, because it is equal to n+sod(n) for n = 136666541994 and 136666542012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436647 + ... + 681170.

It is an arithmetic number, because the mean of its divisors is an integer number (5070422448).

Almost surely, 2^136666542054 is an apocalyptic number.

136666542054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

136666542054 is an abundant number, since it is smaller than the sum of its proper divisors (187840494618).

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

136666542054 is a wasteful number, since it uses less digits than its factorization.

136666542054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117941.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 136666542054 in words is "one hundred thirty-six billion, six hundred sixty-six million, five hundred forty-two thousand, fifty-four".