65611703 has 4 divisors (see below), whose sum is σ = 66052200. Its totient is φ = 65171208.

The previous prime is 65611691. The next prime is 65611723. The reversal of 65611703 is 30711656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65611703 - 2¹⁴ = 65595319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65611723) 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 3 ways as a sum of consecutive naturals, for example, 220025 + ... + 220322.

It is an arithmetic number, because the mean of its divisors is an integer number (16513050).

Almost surely, 2^65611703 is an apocalyptic number.

65611703 is a deficient number, since it is larger than the sum of its proper divisors (440497).

65611703 is a wasteful number, since it uses less digits than its factorization.

65611703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440496.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 65611703 is about 8100.1051227746. The cubic root of 65611703 is about 403.3299167952.

The spelling of 65611703 in words is "sixty-five million, six hundred eleven thousand, seven hundred three".