5263982856666 has 24 divisors (see below), whose sum is σ = 11533445588340. Its totient is φ = 1734945660096.

The previous prime is 5263982856563. The next prime is 5263982856679. The reversal of 5263982856666 is 6666582893625.

It can be written as a sum of positive squares in 2 ways, for example, as 4128434741025 + 1135548115641 = 2031855^2 + 1065621^2 .

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5263982856594 and 5263982856603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1642939365 + ... + 1642942568.

Almost surely, 2^{5263982856666} is an apocalyptic number.

5263982856666 is an abundant number, since it is smaller than the sum of its proper divisors (6269462731674).

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

5263982856666 is a wasteful number, since it uses less digits than its factorization.

5263982856666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285882030 (or 3285882027 counting only the distinct ones).

The product of its digits is 1343692800, while the sum is 72.

The spelling of 5263982856666 in words is "five trillion, two hundred sixty-three billion, nine hundred eighty-two million, eight hundred fifty-six thousand, six hundred sixty-six".