10646886465 has 12 divisors (see below), whose sum is σ = 18454603284. Its totient is φ = 5678339424.

The previous prime is 10646886449. The next prime is 10646886491. The reversal of 10646886465 is 56468864601.

It can be written as a sum of positive squares in 2 ways, for example, as 5359996944 + 5286889521 = 73212^2 + 72711^2 .

It is not a de Polignac number, because 10646886465 - 2⁴ = 10646886449 is a prime.

It is a super-2 number, since 2×10646886465² (a number of 21 digits) contains 22 as substring.

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, 118298694 + ... + 118298783.

It is an arithmetic number, because the mean of its divisors is an integer number (1537883607).

Almost surely, 2^10646886465 is an apocalyptic number.

10646886465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10646886465 is a deficient number, since it is larger than the sum of its proper divisors (7807716819).

10646886465 is a wasteful number, since it uses less digits than its factorization.

10646886465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236597488 (or 236597485 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 10646886465 in words is "ten billion, six hundred forty-six million, eight hundred eighty-six thousand, four hundred sixty-five".