52666678136 has 8 divisors (see below), whose sum is σ = 98750021520. Its totient is φ = 26333339064.

The previous prime is 52666678117. The next prime is 52666678171. The reversal of 52666678136 is 63187666625.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3291667376 + ... + 3291667391.

It is an arithmetic number, because the mean of its divisors is an integer number (12343752690).

Almost surely, 2^52666678136 is an apocalyptic number.

It is an amenable number.

52666678136 is a deficient number, since it is larger than the sum of its proper divisors (46083343384).

52666678136 is a wasteful number, since it uses less digits than its factorization.

52666678136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6583334773 (or 6583334769 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 56.

The spelling of 52666678136 in words is "fifty-two billion, six hundred sixty-six million, six hundred seventy-eight thousand, one hundred thirty-six".