655641456 has 20 divisors (see below), whose sum is σ = 1693740552. Its totient is φ = 218547136.

The previous prime is 655641419. The next prime is 655641479. The reversal of 655641456 is 654146556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6829551 + ... + 6829646.

Almost surely, 2^655641456 is an apocalyptic number.

It is an amenable number.

655641456 is an abundant number, since it is smaller than the sum of its proper divisors (1038099096).

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

655641456 is a wasteful number, since it uses less digits than its factorization.

655641456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13659208 (or 13659202 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 655641456 is about 25605.4965974105. The cubic root of 655641456 is about 868.7379667018.

The spelling of 655641456 in words is "six hundred fifty-five million, six hundred forty-one thousand, four hundred fifty-six".