9966854770 has 16 divisors (see below), whose sum is σ = 17977800960. Its totient is φ = 3978416944.

The previous prime is 9966854767. The next prime is 9966854771. The reversal of 9966854770 is 774586699.

It is a junction number, because it is equal to n+sod(n) for n = 9966854699 and 9966854708.

It is not an unprimeable number, because it can be changed into a prime (9966854771) 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, 1035592 + ... + 1045171.

It is an arithmetic number, because the mean of its divisors is an integer number (1123612560).

Almost surely, 2^9966854770 is an apocalyptic number.

9966854770 is a deficient number, since it is larger than the sum of its proper divisors (8010946190).

9966854770 is a wasteful number, since it uses less digits than its factorization.

9966854770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081249.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The square root of 9966854770 is about 99834.1362961587. The cubic root of 9966854770 is about 2152.0517475395.

The spelling of 9966854770 in words is "nine billion, nine hundred sixty-six million, eight hundred fifty-four thousand, seven hundred seventy".