655112144 has 10 divisors (see below), whose sum is σ = 1269279810. Its totient is φ = 327556064.

The previous prime is 655112099. The next prime is 655112149. The reversal of 655112144 is 441211556.

It can be written as a sum of positive squares in only one way, i.e., 445210000 + 209902144 = 21100^2 + 14488^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655112149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20472239 + ... + 20472270.

It is an arithmetic number, because the mean of its divisors is an integer number (126927981).

Almost surely, 2^655112144 is an apocalyptic number.

It is an amenable number.

655112144 is a deficient number, since it is larger than the sum of its proper divisors (614167666).

655112144 is a wasteful number, since it uses less digits than its factorization.

655112144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40944517 (or 40944511 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 655112144 is about 25595.1586047049. The cubic root of 655112144 is about 868.5041207860.

The spelling of 655112144 in words is "six hundred fifty-five million, one hundred twelve thousand, one hundred forty-four".