21050160966 has 24 divisors (see below), whose sum is σ = 46356367824. Its totient is φ = 6901691760.

The previous prime is 21050160959. The next prime is 21050160977. The reversal of 21050160966 is 66906105012.

21050160966 is a `hidden beast` number, since 2 + 1 + 0 + 501 + 60 + 96 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 21050160966.

It is a congruent number.

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, 9584586 + ... + 9586781.

It is an arithmetic number, because the mean of its divisors is an integer number (1931515326).

Almost surely, 2^21050160966 is an apocalyptic number.

21050160966 is an abundant number, since it is smaller than the sum of its proper divisors (25306206858).

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

21050160966 is a wasteful number, since it uses less digits than its factorization.

21050160966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19171436 (or 19171433 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

Adding to 21050160966 its reverse (66906105012), we get a palindrome (87956265978).

The spelling of 21050160966 in words is "twenty-one billion, fifty million, one hundred sixty thousand, nine hundred sixty-six".