10646451204066 has 20 divisors (see below), whose sum is σ = 23855936957622. Its totient is φ = 3548817067968.

The previous prime is 10646451204029. The next prime is 10646451204127. The reversal of 10646451204066 is 66040215464601.

10646451204066 is a `hidden beast` number, since 1 + 0 + 6 + 464 + 5 + 120 + 4 + 0 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10603717632225 + 42733571841 = 3256335^2 + 206721^2 .

It is a super-2 number, since 2×10646451204066² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32859417135 + ... + 32859417458.

Almost surely, 2^{10646451204066} is an apocalyptic number.

10646451204066 is an abundant number, since it is smaller than the sum of its proper divisors (13209485753556).

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

10646451204066 is an equidigital number, since it uses as much as digits as its factorization.

10646451204066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65718834607 (or 65718834598 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

Adding to 10646451204066 its reverse (66040215464601), we get a palindrome (76686666668667).

The spelling of 10646451204066 in words is "ten trillion, six hundred forty-six billion, four hundred fifty-one million, two hundred four thousand, sixty-six".