65561614 has 16 divisors (see below), whose sum is σ = 99360000. Its totient is φ = 32443704.

The previous prime is 65561611. The next prime is 65561651. The reversal of 65561614 is 41616556.

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 65561614.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65561611) 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, 131137 + ... + 131635.

It is an arithmetic number, because the mean of its divisors is an integer number (6210000).

Almost surely, 2^65561614 is an apocalyptic number.

65561614 is a deficient number, since it is larger than the sum of its proper divisors (33798386).

65561614 is a wasteful number, since it uses less digits than its factorization.

65561614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

The product of its digits is 21600, while the sum is 34.

The square root of 65561614 is about 8097.0126589996. The cubic root of 65561614 is about 403.2272545444.

The spelling of 65561614 in words is "sixty-five million, five hundred sixty-one thousand, six hundred fourteen".