655566141136 has 20 divisors (see below), whose sum is σ = 1286237368000. Its totient is φ = 323633917152.

The previous prime is 655566141089. The next prime is 655566141199. The reversal of 655566141136 is 631141665556.

It is a self number, because there is not a number n which added to its sum of digits gives 655566141136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259320786 + ... + 259323313.

It is an arithmetic number, because the mean of its divisors is an integer number (64311868400).

Almost surely, 2^655566141136 is an apocalyptic number.

It is an amenable number.

655566141136 is a deficient number, since it is larger than the sum of its proper divisors (630671226864).

655566141136 is a wasteful number, since it uses less digits than its factorization.

655566141136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518644186 (or 518644180 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 49.

The spelling of 655566141136 in words is "six hundred fifty-five billion, five hundred sixty-six million, one hundred forty-one thousand, one hundred thirty-six".