655740063 has 16 divisors (see below), whose sum is σ = 1059782400. Its totient is φ = 397418040.

The previous prime is 655740049. The next prime is 655740077. The reversal of 655740063 is 360047556.

655740063 is a `hidden beast` number, since 6 + 557 + 40 + 0 + 63 = 666.

It is an interprime number because it is at equal distance from previous prime (655740049) and next prime (655740077).

It is not a de Polignac number, because 655740063 - 2¹⁷ = 655608991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655740563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1103643 + ... + 1104236.

It is an arithmetic number, because the mean of its divisors is an integer number (66236400).

Almost surely, 2^655740063 is an apocalyptic number.

655740063 is a deficient number, since it is larger than the sum of its proper divisors (404042337).

655740063 is a wasteful number, since it uses less digits than its factorization.

655740063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207899 (or 2207893 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 655740063 is about 25607.4220295601. The cubic root of 655740063 is about 868.7815165973.

The spelling of 655740063 in words is "six hundred fifty-five million, seven hundred forty thousand, sixty-three".