10566746865 has 48 divisors (see below), whose sum is σ = 20111390208. Its totient is φ = 5304082176.

The previous prime is 10566746851. The next prime is 10566746867. The reversal of 10566746865 is 56864766501.

10566746865 is a `hidden beast` number, since 1 + 0 + 566 + 74 + 6 + 8 + 6 + 5 = 666.

It is not a de Polignac number, because 10566746865 - 2⁵ = 10566746833 is a prime.

It is a super-2 number, since 2×10566746865² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10566746867) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 235137 + ... + 276446.

It is an arithmetic number, because the mean of its divisors is an integer number (418987296).

Almost surely, 2^10566746865 is an apocalyptic number.

10566746865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10566746865 is a deficient number, since it is larger than the sum of its proper divisors (9544643343).

10566746865 is an equidigital number, since it uses as much as digits as its factorization.

10566746865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511620 (or 511608 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 10566746865 in words is "ten billion, five hundred sixty-six million, seven hundred forty-six thousand, eight hundred sixty-five".