655711681244 has 6 divisors (see below), whose sum is σ = 1147495442184. Its totient is φ = 327855840620.

The previous prime is 655711681201. The next prime is 655711681271. The reversal of 655711681244 is 442186117556.

It is a super-2 number, since 2×655711681244² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655711681192 and 655711681201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81963960152 + ... + 81963960159.

It is an arithmetic number, because the mean of its divisors is an integer number (191249240364).

Almost surely, 2^655711681244 is an apocalyptic number.

It is an amenable number.

655711681244 is a deficient number, since it is larger than the sum of its proper divisors (491783760940).

655711681244 is a wasteful number, since it uses less digits than its factorization.

655711681244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163927920315 (or 163927920313 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The spelling of 655711681244 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, two hundred forty-four".