655016999 has 16 divisors (see below), whose sum is σ = 806776320. Its totient is φ = 517868640.

The previous prime is 655016981. The next prime is 655017007. The reversal of 655016999 is 999610556.

It is a cyclic number.

It is not a de Polignac number, because 655016999 - 2⁸ = 655016743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655016099) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 233294 + ... + 236084.

It is an arithmetic number, because the mean of its divisors is an integer number (50423520).

Almost surely, 2^655016999 is an apocalyptic number.

655016999 is a deficient number, since it is larger than the sum of its proper divisors (151759321).

655016999 is a wasteful number, since it uses less digits than its factorization.

655016999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 655016999 is about 25593.2998849308. The cubic root of 655016999 is about 868.4620731121.

The spelling of 655016999 in words is "six hundred fifty-five million, sixteen thousand, nine hundred ninety-nine".