655601056617 has 24 divisors (see below), whose sum is σ = 947192821248. Its totient is φ = 403172078400.

The previous prime is 655601056577. The next prime is 655601056633. The reversal of 655601056617 is 716650106556.

It is not a de Polignac number, because 655601056617 - 2¹² = 655601052521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655601016617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306267 + ... + 1185327.

It is an arithmetic number, because the mean of its divisors is an integer number (39466367552).

Almost surely, 2^655601056617 is an apocalyptic number.

It is an amenable number.

655601056617 is a deficient number, since it is larger than the sum of its proper divisors (291591764631).

655601056617 is a wasteful number, since it uses less digits than its factorization.

655601056617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880561 (or 880548 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 655601056617 in words is "six hundred fifty-five billion, six hundred one million, fifty-six thousand, six hundred seventeen".