66474466447466 has 96 divisors (see below), whose sum is σ = 133200940017600. Its totient is φ = 24535044737280.

The previous prime is 66474466447453. The next prime is 66474466447481.

66474466447466 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66474466447393 and 66474466447402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 686692580 + ... + 686789376.

It is an arithmetic number, because the mean of its divisors is an integer number (1387509791850).

Almost surely, 2^{66474466447466} is an apocalyptic number.

66474466447466 is an abundant number, since it is smaller than the sum of its proper divisors (66726473570134).

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

66474466447466 is a wasteful number, since it uses less digits than its factorization.

66474466447466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130372 (or 130365 counting only the distinct ones).

The product of its digits is 9364045824, while the sum is 74.

The spelling of 66474466447466 in words is "sixty-six trillion, four hundred seventy-four billion, four hundred sixty-six million, four hundred forty-seven thousand, four hundred sixty-six".