10943947866 has 16 divisors (see below), whose sum is σ = 21889802304. Its totient is φ = 3647664864.

The previous prime is 10943947843. The next prime is 10943947867. The reversal of 10943947866 is 66874934901.

It is not an unprimeable number, because it can be changed into a prime (10943947867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1531 + ... + 147953.

It is an arithmetic number, because the mean of its divisors is an integer number (1368112644).

Almost surely, 2^10943947866 is an apocalyptic number.

10943947866 is an abundant number, since it is smaller than the sum of its proper divisors (10945854438).

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

10943947866 is a wasteful number, since it uses less digits than its factorization.

10943947866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158885.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 10943947866 in words is "ten billion, nine hundred forty-three million, nine hundred forty-seven thousand, eight hundred sixty-six".