10643115061566 has 48 divisors (see below), whose sum is σ = 24847833117744. Its totient is φ = 3272971934592.

The previous prime is 10643115061427. The next prime is 10643115061583. The reversal of 10643115061566 is 66516051134601.

10643115061566 is a `hidden beast` number, since 1 + 0 + 6 + 4 + 31 + 1 + 50 + 6 + 1 + 566 = 666.

It is a super-2 number, since 2×10643115061566² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12308031 + ... + 13144346.

It is an arithmetic number, because the mean of its divisors is an integer number (517663189953).

Almost surely, 2^{10643115061566} is an apocalyptic number.

10643115061566 is an abundant number, since it is smaller than the sum of its proper divisors (14204718056178).

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

10643115061566 is a wasteful number, since it uses less digits than its factorization.

10643115061566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25454185 (or 25454182 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 10643115061566 in words is "ten trillion, six hundred forty-three billion, one hundred fifteen million, sixty-one thousand, five hundred sixty-six".