10766551645 has 4 divisors (see below), whose sum is σ = 12919861980.
Its totient is φ = 8613241312.
The previous prime is 10766551637. The next prime is 10766551669. The reversal of 10766551645 is 54615566701.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 6049883961 + 4716667684 = 77781^2 + 68678^2
It is a cyclic number.
It is not a de Polignac number, because 10766551645 - 23 = 10766551637 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 10766551595 and 10766551604.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076655160 + ... + 1076655169.
It is an arithmetic number, because the mean of its divisors is an integer number (3229965495).
Almost surely, 210766551645 is an apocalyptic number.
It is an amenable number.
10766551645 is a deficient number, since it is larger than the sum of its proper divisors (2153310335).
10766551645 is an equidigital number, since it uses as much as digits as its factorization.
10766551645 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2153310334.
The product of its (nonzero) digits is 756000, while the sum is 46.
The spelling of 10766551645 in words is "ten billion, seven hundred sixty-six million, five hundred fifty-one thousand, six hundred forty-five".