612811314665 has 16 divisors (see below), whose sum is σ = 803759651136. Its totient is φ = 444828772800.

The previous prime is 612811314649. The next prime is 612811314683. The reversal of 612811314665 is 566413118216.

It is a happy number.

It is not a de Polignac number, because 612811314665 - 2⁴ = 612811314649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10623266 + ... + 10680795.

It is an arithmetic number, because the mean of its divisors is an integer number (50234978196).

Almost surely, 2^612811314665 is an apocalyptic number.

It is an amenable number.

612811314665 is a deficient number, since it is larger than the sum of its proper divisors (190948336471).

612811314665 is a wasteful number, since it uses less digits than its factorization.

612811314665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304600.

The product of its digits is 207360, while the sum is 44.

The spelling of 612811314665 in words is "six hundred twelve billion, eight hundred eleven million, three hundred fourteen thousand, six hundred sixty-five".