660661273295 has 8 divisors (see below), whose sum is σ = 796286011824. Its totient is φ = 526200696064.

The previous prime is 660661273277. The next prime is 660661273387. The reversal of 660661273295 is 592372166066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 660661273295 - 2³⁶ = 591941796559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291039074 + ... + 291041343.

It is an arithmetic number, because the mean of its divisors is an integer number (99535751478).

Almost surely, 2^660661273295 is an apocalyptic number.

660661273295 is a deficient number, since it is larger than the sum of its proper divisors (135624738529).

660661273295 is a wasteful number, since it uses less digits than its factorization.

660661273295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582080649.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 660661273295 in words is "six hundred sixty billion, six hundred sixty-one million, two hundred seventy-three thousand, two hundred ninety-five".