65157216 has 24 divisors (see below), whose sum is σ = 171037944. Its totient is φ = 21719040.

The previous prime is 65157203. The next prime is 65157227. The reversal of 65157216 is 61275156.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339265 + ... + 339456.

It is an arithmetic number, because the mean of its divisors is an integer number (7126581).

Almost surely, 2^65157216 is an apocalyptic number.

It is an amenable number.

65157216 is an abundant number, since it is smaller than the sum of its proper divisors (105880728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65157216 is a wasteful number, since it uses less digits than its factorization.

65157216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678734 (or 678726 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 65157216 is about 8072.0019821603. The cubic root of 65157216 is about 402.3964801998.

It can be divided in two parts, 6515 and 7216, that added together give a palindrome (13731).

The spelling of 65157216 in words is "sixty-five million, one hundred fifty-seven thousand, two hundred sixteen".