65404161473 has 8 divisors (see below), whose sum is σ = 76485930048. Its totient is φ = 54756972144.

The previous prime is 65404161469. The next prime is 65404161479. The reversal of 65404161473 is 37416140456.

65404161473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 65404161473 - 2² = 65404161469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65404161473.

It is not an unprimeable number, because it can be changed into a prime (65404161479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108644486 + ... + 108645087.

It is an arithmetic number, because the mean of its divisors is an integer number (9560741256).

Almost surely, 2^65404161473 is an apocalyptic number.

It is an amenable number.

65404161473 is a deficient number, since it is larger than the sum of its proper divisors (11081768575).

65404161473 is a wasteful number, since it uses less digits than its factorization.

65404161473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217289623.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 65404161473 in words is "sixty-five billion, four hundred four million, one hundred sixty-one thousand, four hundred seventy-three".