66468886466 has 8 divisors (see below), whose sum is σ = 105568231500. Its totient is φ = 31279475968.

The previous prime is 66468886457. The next prime is 66468886481.

It is a happy number.

66468886466 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 48916611241 + 17552275225 = 221171^2 + 132485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66468886466² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66468886396 and 66468886405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977483591 + ... + 977483658.

Almost surely, 2^66468886466 is an apocalyptic number.

66468886466 is a deficient number, since it is larger than the sum of its proper divisors (39099345034).

66468886466 is a wasteful number, since it uses less digits than its factorization.

66468886466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954967268.

The product of its digits is 382205952, while the sum is 68.

The spelling of 66468886466 in words is "sixty-six billion, four hundred sixty-eight million, eight hundred eighty-six thousand, four hundred sixty-six".