66870528810936 has 16 divisors (see below), whose sum is σ = 167176322027400. Its totient is φ = 22290176270304.

The previous prime is 66870528810907. The next prime is 66870528810937. The reversal of 66870528810936 is 63901882507866.

It is a happy number.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66870528810937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393136016871 + ... + 1393136016918.

Almost surely, 2^{66870528810936} is an apocalyptic number.

It is an amenable number.

66870528810936 is an abundant number, since it is smaller than the sum of its proper divisors (100305793216464).

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

66870528810936 is a wasteful number, since it uses less digits than its factorization.

66870528810936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786272033798 (or 2786272033794 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 69.

The spelling of 66870528810936 in words is "sixty-six trillion, eight hundred seventy billion, five hundred twenty-eight million, eight hundred ten thousand, nine hundred thirty-six".