610601665065 has 16 divisors (see below), whose sum is σ = 1116528759168. Its totient is φ = 279132189696.

The previous prime is 610601665031. The next prime is 610601665067. The reversal of 610601665065 is 560566106016.

It is not a de Polignac number, because 610601665065 - 2⁶ = 610601665001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (610601665067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2907626872 + ... + 2907627081.

It is an arithmetic number, because the mean of its divisors is an integer number (69783047448).

Almost surely, 2^610601665065 is an apocalyptic number.

It is an amenable number.

610601665065 is a deficient number, since it is larger than the sum of its proper divisors (505927094103).

610601665065 is a wasteful number, since it uses less digits than its factorization.

610601665065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815253968.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 610601665065 in words is "six hundred ten billion, six hundred one million, six hundred sixty-five thousand, sixty-five".