866788526376620 has 96 divisors (see below), whose sum is σ = 1842781708454400. Its totient is φ = 342433765566464.

The previous prime is 866788526376613. The next prime is 866788526376637. The reversal of 866788526376620 is 26673625887668.

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, 6037195154 + ... + 6037338726.

It is an arithmetic number, because the mean of its divisors is an integer number (19195642796400).

Almost surely, 2^{866788526376620} is an apocalyptic number.

It is an amenable number.

866788526376620 is an abundant number, since it is smaller than the sum of its proper divisors (975993182077780).

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

866788526376620 is a wasteful number, since it uses less digits than its factorization.

866788526376620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147467 (or 147465 counting only the distinct ones).

The product of its (nonzero) digits is 11705057280, while the sum is 80.

The spelling of 866788526376620 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, three hundred seventy-six thousand, six hundred twenty".