65444152 has 16 divisors (see below), whose sum is σ = 129926160. Its totient is φ = 30797184.

The previous prime is 65444147. The next prime is 65444161. The reversal of 65444152 is 25144456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240468 + ... + 240739.

It is an arithmetic number, because the mean of its divisors is an integer number (8120385).

Almost surely, 2^65444152 is an apocalyptic number.

It is an amenable number.

65444152 is a deficient number, since it is larger than the sum of its proper divisors (64482008).

65444152 is a wasteful number, since it uses less digits than its factorization.

65444152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481230 (or 481226 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 65444152 is about 8089.7559913758. The cubic root of 65444152 is about 402.9862995546.

The spelling of 65444152 in words is "sixty-five million, four hundred forty-four thousand, one hundred fifty-two".