66407470466 has 8 divisors (see below), whose sum is σ = 100046189820. Its totient is φ = 33058740528.

The previous prime is 66407470439. The next prime is 66407470489.

66407470466 is nontrivially palindromic in base 10.

66407470466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 65502724225 + 904746241 = 255935^2 + 30079^2 .

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

It is a Curzon number.

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, 72496781 + ... + 72497696.

Almost surely, 2^66407470466 is an apocalyptic number.

66407470466 is a deficient number, since it is larger than the sum of its proper divisors (33638719354).

66407470466 is a wasteful number, since it uses less digits than its factorization.

66407470466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144994708.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 66407470466 in words is "sixty-six billion, four hundred seven million, four hundred seventy thousand, four hundred sixty-six".