655126646771 has 8 divisors (see below), whose sum is σ = 666551561664. Its totient is φ = 643767963840.

The previous prime is 655126646767. The next prime is 655126646849. The reversal of 655126646771 is 177646621556.

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 655126646771 - 2² = 655126646767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655126646761) 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, 16538036 + ... + 16577601.

It is an arithmetic number, because the mean of its divisors is an integer number (83318945208).

Almost surely, 2^655126646771 is an apocalyptic number.

655126646771 is a deficient number, since it is larger than the sum of its proper divisors (11424914893).

655126646771 is a wasteful number, since it uses less digits than its factorization.

655126646771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33115981.

The product of its digits is 12700800, while the sum is 56.

The spelling of 655126646771 in words is "six hundred fifty-five billion, one hundred twenty-six million, six hundred forty-six thousand, seven hundred seventy-one".