866420526652 has 24 divisors (see below), whose sum is σ = 1520701894656. Its totient is φ = 431934547968.

The previous prime is 866420526563. The next prime is 866420526703. The reversal of 866420526652 is 256625024668.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 866420526652.

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 in 7 ways as a sum of consecutive naturals, for example, 14815173 + ... + 14873539.

It is an arithmetic number, because the mean of its divisors is an integer number (63362578944).

Almost surely, 2^866420526652 is an apocalyptic number.

It is an amenable number.

866420526652 is a deficient number, since it is larger than the sum of its proper divisors (654281368004).

866420526652 is a wasteful number, since it uses less digits than its factorization.

866420526652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69237 (or 69235 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 866420526652 in words is "eight hundred sixty-six billion, four hundred twenty million, five hundred twenty-six thousand, six hundred fifty-two".