655434343434556 has 48 divisors (see below), whose sum is σ = 1356076450713600. Its totient is φ = 271213132010688.

The previous prime is 655434343434553. The next prime is 655434343434623.

655434343434556 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655434343434553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221723685 + ... + 224660323.

It is an arithmetic number, because the mean of its divisors is an integer number (28251592723200).

Almost surely, 2^{655434343434556} is an apocalyptic number.

It is an amenable number.

655434343434556 is an abundant number, since it is smaller than the sum of its proper divisors (700642107279044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655434343434556 is a wasteful number, since it uses less digits than its factorization.

655434343434556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211546 (or 3211544 counting only the distinct ones).

The product of its digits is 1866240000, while the sum is 64.

The spelling of 655434343434556 in words is "six hundred fifty-five trillion, four hundred thirty-four billion, three hundred forty-three million, four hundred thirty-four thousand, five hundred fifty-six".