10645166945 has 12 divisors (see below), whose sum is σ = 14859784404. Its totient is φ = 7299542880.

The previous prime is 10645166923. The next prime is 10645166953. The reversal of 10645166945 is 54966154601.

It can be written as a sum of positive squares in 2 ways, for example, as 7553695744 + 3091471201 = 86912^2 + 55601^2 .

It is not a de Polignac number, because 10645166945 - 2²⁸ = 10376731489 is a prime.

It is a super-2 number, since 2×10645166945² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10645166945.

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, 21724586 + ... + 21725075.

It is an arithmetic number, because the mean of its divisors is an integer number (1238315367).

Almost surely, 2^10645166945 is an apocalyptic number.

It is an amenable number.

10645166945 is a deficient number, since it is larger than the sum of its proper divisors (4214617459).

10645166945 is an equidigital number, since it uses as much as digits as its factorization.

10645166945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43449680 (or 43449673 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 10645166945 in words is "ten billion, six hundred forty-five million, one hundred sixty-six thousand, nine hundred forty-five".