65516433 has 4 divisors (see below), whose sum is σ = 87355248. Its totient is φ = 43677620.

The previous prime is 65516431. The next prime is 65516459. The reversal of 65516433 is 33461556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65516433 - 2¹ = 65516431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65516394 and 65516403.

It is not an unprimeable number, because it can be changed into a prime (65516431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10919403 + ... + 10919408.

It is an arithmetic number, because the mean of its divisors is an integer number (21838812).

Almost surely, 2^65516433 is an apocalyptic number.

It is an amenable number.

65516433 is a deficient number, since it is larger than the sum of its proper divisors (21838815).

65516433 is a wasteful number, since it uses less digits than its factorization.

65516433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21838814.

The product of its digits is 32400, while the sum is 33.

The square root of 65516433 is about 8094.2221985809. Note that the first 3 decimals coincide. The cubic root of 65516433 is about 403.1346068500.

Adding to 65516433 its reverse (33461556), we get a palindrome (98977989).

The spelling of 65516433 in words is "sixty-five million, five hundred sixteen thousand, four hundred thirty-three".