655751381673 has 16 divisors (see below), whose sum is σ = 877973031936. Its totient is φ = 435351309840.

The previous prime is 655751381671. The next prime is 655751381683. The reversal of 655751381673 is 376183157556.

It is a happy number.

It is not a de Polignac number, because 655751381673 - 2¹ = 655751381671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655751381671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661186 + ... + 1322372.

It is an arithmetic number, because the mean of its divisors is an integer number (54873314496).

Almost surely, 2^655751381673 is an apocalyptic number.

It is an amenable number.

655751381673 is a deficient number, since it is larger than the sum of its proper divisors (222221650263).

655751381673 is a wasteful number, since it uses less digits than its factorization.

655751381673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662564.

The product of its digits is 15876000, while the sum is 57.

The spelling of 655751381673 in words is "six hundred fifty-five billion, seven hundred fifty-one million, three hundred eighty-one thousand, six hundred seventy-three".