655221343833085 has 8 divisors (see below), whose sum is σ = 786331359440640. Its totient is φ = 524133243839184.

The previous prime is 655221343833083. The next prime is 655221343833097. The reversal of 655221343833085 is 580338343122556.

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 655221343833085 - 2¹ = 655221343833083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655221343833083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5478837637 + ... + 5478957226.

It is an arithmetic number, because the mean of its divisors is an integer number (98291419930080).

Almost surely, 2^{655221343833085} is an apocalyptic number.

It is an amenable number.

655221343833085 is a deficient number, since it is larger than the sum of its proper divisors (131110015607555).

655221343833085 is a wasteful number, since it uses less digits than its factorization.

655221343833085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957806827.

The product of its (nonzero) digits is 62208000, while the sum is 58.

The spelling of 655221343833085 in words is "six hundred fifty-five trillion, two hundred twenty-one billion, three hundred forty-three million, eight hundred thirty-three thousand, eighty-five".