65201645 has 16 divisors (see below), whose sum is σ = 79263360. Its totient is φ = 51486144.

The previous prime is 65201641. The next prime is 65201651. The reversal of 65201645 is 54610256.

It is a cyclic number.

It is not a de Polignac number, because 65201645 - 2² = 65201641 is a prime.

It is a super-3 number, since 3×65201645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65201641) 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 15 ways as a sum of consecutive naturals, for example, 235247 + ... + 235523.

It is an arithmetic number, because the mean of its divisors is an integer number (4953960).

Almost surely, 2^65201645 is an apocalyptic number.

It is an amenable number.

65201645 is a deficient number, since it is larger than the sum of its proper divisors (14061715).

65201645 is a wasteful number, since it uses less digits than its factorization.

65201645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 65201645 is about 8074.7535566109. The cubic root of 65201645 is about 402.4879206282.

The spelling of 65201645 in words is "sixty-five million, two hundred one thousand, six hundred forty-five".