966840457473 has 48 divisors (see below), whose sum is σ = 1606906080000. Its totient is φ = 554010697440.

The previous prime is 966840457403. The next prime is 966840457477. The reversal of 966840457473 is 374754048669.

It is a happy number.

966840457473 is a `hidden beast` number, since 9 + 66 + 84 + 0 + 457 + 47 + 3 = 666.

It is not a de Polignac number, because 966840457473 - 2²⁴ = 966823680257 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 966840457473.

It is not an unprimeable number, because it can be changed into a prime (966840457477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423586 + ... + 1453652.

It is an arithmetic number, because the mean of its divisors is an integer number (33477210000).

Almost surely, 2^966840457473 is an apocalyptic number.

It is an amenable number.

966840457473 is a deficient number, since it is larger than the sum of its proper divisors (640065622527).

966840457473 is a wasteful number, since it uses less digits than its factorization.

966840457473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030602 (or 1030599 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 63.

The spelling of 966840457473 in words is "nine hundred sixty-six billion, eight hundred forty million, four hundred fifty-seven thousand, four hundred seventy-three".