65600661101 has 8 divisors (see below), whose sum is σ = 65897525400. Its totient is φ = 65303887680.

The previous prime is 65600661079. The next prime is 65600661107. The reversal of 65600661101 is 10116600656.

It can be written as a sum of positive squares in 4 ways, for example, as 44131085476 + 21469575625 = 210074^2 + 146525^2 .

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-65600661101 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 (65600661107) 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, 1726415 + ... + 1764003.

It is an arithmetic number, because the mean of its divisors is an integer number (8237190675).

Almost surely, 2^65600661101 is an apocalyptic number.

It is an amenable number.

65600661101 is a deficient number, since it is larger than the sum of its proper divisors (296864299).

65600661101 is a wasteful number, since it uses less digits than its factorization.

65600661101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45439.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 65600661101 in words is "sixty-five billion, six hundred million, six hundred sixty-one thousand, one hundred one".