63966404410 has 12 divisors (see below), whose sum is σ = 115140967578. Its totient is φ = 25586241848.

The previous prime is 63966404401. The next prime is 63966404413. The reversal of 63966404410 is 1440466936.

It can be written as a sum of positive squares in only one way, i.e., 57569763969 + 6396640441 = 239937^2 + 79979^2 .

It is not an unprimeable number, because it can be changed into a prime (63966404413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 759801 + ... + 839779.

Almost surely, 2^63966404410 is an apocalyptic number.

63966404410 is a deficient number, since it is larger than the sum of its proper divisors (51174563168).

63966404410 is an frugal number, since it uses more digits than its factorization.

63966404410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159965 (or 79986 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 63966404410 in words is "sixty-three billion, nine hundred sixty-six million, four hundred four thousand, four hundred ten".