212105064464 has 20 divisors (see below), whose sum is σ = 419697256704. Its totient is φ = 103796095008.

The previous prime is 212105064427. The next prime is 212105064473. The reversal of 212105064464 is 464460501212.

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, 141026552 + ... + 141028055.

Almost surely, 2^212105064464 is an apocalyptic number.

It is an amenable number.

212105064464 is a deficient number, since it is larger than the sum of its proper divisors (207592192240).

212105064464 is a wasteful number, since it uses less digits than its factorization.

212105064464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282054662 (or 282054656 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 212105064464 its reverse (464460501212), we get a palindrome (676565565676).

The spelling of 212105064464 in words is "two hundred twelve billion, one hundred five million, sixty-four thousand, four hundred sixty-four".