65616622 has 4 divisors (see below), whose sum is σ = 98424936. Its totient is φ = 32808310.

The previous prime is 65616619. The next prime is 65616623. The reversal of 65616622 is 22661656.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65616623) 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 as a sum of consecutive naturals, namely, 16404154 + ... + 16404157.

It is an arithmetic number, because the mean of its divisors is an integer number (24606234).

Almost surely, 2^65616622 is an apocalyptic number.

65616622 is a deficient number, since it is larger than the sum of its proper divisors (32808314).

65616622 is a wasteful number, since it uses less digits than its factorization.

65616622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32808313.

The product of its digits is 25920, while the sum is 34.

The square root of 65616622 is about 8100.4087551185. The cubic root of 65616622 is about 403.3399959436.

The spelling of 65616622 in words is "sixty-five million, six hundred sixteen thousand, six hundred twenty-two".