65241666 has 32 divisors (see below), whose sum is σ = 165694080. Its totient is φ = 18640368.

The previous prime is 65241653. The next prime is 65241667. The reversal of 65241666 is 66614256.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65241666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65241667) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85921 + ... + 86676.

It is an arithmetic number, because the mean of its divisors is an integer number (5177940).

Almost surely, 2^65241666 is an apocalyptic number.

65241666 is an abundant number, since it is smaller than the sum of its proper divisors (100452414).

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

65241666 is a wasteful number, since it uses less digits than its factorization.

65241666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172615 (or 172609 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 65241666 is about 8077.2313325793. The cubic root of 65241666 is about 402.5702532876.

The spelling of 65241666 in words is "sixty-five million, two hundred forty-one thousand, six hundred sixty-six".