65630641 has 8 divisors (see below), whose sum is σ = 66163968. Its totient is φ = 65100000.

The previous prime is 65630629. The next prime is 65630681. The reversal of 65630641 is 14603656.

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

It is a cyclic number.

It is not a de Polignac number, because 65630641 - 2⁹ = 65630129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65630681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87016 + ... + 87766.

It is an arithmetic number, because the mean of its divisors is an integer number (8270496).

Almost surely, 2^65630641 is an apocalyptic number.

It is an amenable number.

65630641 is a deficient number, since it is larger than the sum of its proper divisors (533327).

65630641 is a wasteful number, since it uses less digits than its factorization.

65630641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 65630641 is about 8101.2740356070. The cubic root of 65630641 is about 403.3687184461.

The spelling of 65630641 in words is "sixty-five million, six hundred thirty thousand, six hundred forty-one".