65314016621 has 8 divisors (see below), whose sum is σ = 74778606720. Its totient is φ = 55882930608.

The previous prime is 65314016503. The next prime is 65314016657. The reversal of 65314016621 is 12661041356.

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

It is a cyclic number.

It is not a de Polignac number, because 65314016621 - 2¹⁸ = 65313754477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65314010621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8371841 + ... + 8379638.

It is an arithmetic number, because the mean of its divisors is an integer number (9347325840).

Almost surely, 2^65314016621 is an apocalyptic number.

It is an amenable number.

65314016621 is a deficient number, since it is larger than the sum of its proper divisors (9464590099).

65314016621 is a wasteful number, since it uses less digits than its factorization.

65314016621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752043.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 65314016621 its reverse (12661041356), we get a palindrome (77975057977).

The spelling of 65314016621 in words is "sixty-five billion, three hundred fourteen million, sixteen thousand, six hundred twenty-one".