65518061 has 8 divisors (see below), whose sum is σ = 78818880. Its totient is φ = 53202528.

The previous prime is 65518043. The next prime is 65518091. The reversal of 65518061 is 16081556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65518061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65518001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246176 + ... + 246441.

It is an arithmetic number, because the mean of its divisors is an integer number (9852360).

Almost surely, 2^65518061 is an apocalyptic number.

It is an amenable number.

65518061 is a deficient number, since it is larger than the sum of its proper divisors (13300819).

65518061 is a wasteful number, since it uses less digits than its factorization.

65518061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492643.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 65518061 is about 8094.3227635176. The cubic root of 65518061 is about 403.1379459497.

The spelling of 65518061 in words is "sixty-five million, five hundred eighteen thousand, sixty-one".