655969274605 has 8 divisors (see below), whose sum is σ = 789849694872. Its totient is φ = 522984376128.

The previous prime is 655969274567. The next prime is 655969274617. The reversal of 655969274605 is 506472969556.

It can be written as a sum of positive squares in 4 ways, for example, as 284918953284 + 371050321321 = 533778^2 + 609139^2 .

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 655969274605 - 2¹¹ = 655969272557 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, 223878834 + ... + 223881763.

It is an arithmetic number, because the mean of its divisors is an integer number (98731211859).

Almost surely, 2^655969274605 is an apocalyptic number.

It is an amenable number.

655969274605 is a deficient number, since it is larger than the sum of its proper divisors (133880420267).

655969274605 is a wasteful number, since it uses less digits than its factorization.

655969274605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447760895.

The product of its (nonzero) digits is 122472000, while the sum is 64.

The spelling of 655969274605 in words is "six hundred fifty-five billion, nine hundred sixty-nine million, two hundred seventy-four thousand, six hundred five".