210061327664 has 10 divisors (see below), whose sum is σ = 406993822380. Its totient is φ = 105030663824.

The previous prime is 210061327661. The next prime is 210061327667. The reversal of 210061327664 is 466723160012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210061327661) and next prime (210061327667).

It is a super-2 number, since 2×210061327664² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210061327661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564416474 + ... + 6564416505.

It is an arithmetic number, because the mean of its divisors is an integer number (40699382238).

Almost surely, 2^210061327664 is an apocalyptic number.

It is an amenable number.

210061327664 is a deficient number, since it is larger than the sum of its proper divisors (196932494716).

210061327664 is a wasteful number, since it uses less digits than its factorization.

210061327664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128832987 (or 13128832981 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

Adding to 210061327664 its reverse (466723160012), we get a palindrome (676784487676).

The spelling of 210061327664 in words is "two hundred ten billion, sixty-one million, three hundred twenty-seven thousand, six hundred sixty-four".