65371663 has 4 divisors (see below), whose sum is σ = 74710480. Its totient is φ = 56032848.

The previous prime is 65371643. The next prime is 65371673. The reversal of 65371663 is 36617356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65371663 - 2⁹ = 65371151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65371643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4669398 + ... + 4669411.

It is an arithmetic number, because the mean of its divisors is an integer number (18677620).

Almost surely, 2^65371663 is an apocalyptic number.

65371663 is a deficient number, since it is larger than the sum of its proper divisors (9338817).

65371663 is an equidigital number, since it uses as much as digits as its factorization.

65371663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9338816.

The product of its digits is 68040, while the sum is 37.

The square root of 65371663 is about 8085.2744542161. The cubic root of 65371663 is about 402.8374557686.

The spelling of 65371663 in words is "sixty-five million, three hundred seventy-one thousand, six hundred sixty-three".