655517200099 has 4 divisors (see below), whose sum is σ = 657883688464. Its totient is φ = 653150711736.

The previous prime is 655517200087. The next prime is 655517200109. The reversal of 655517200099 is 990002715556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655517200099 - 2⁷ = 655517199971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655517200199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183243767 + ... + 1183244320.

It is an arithmetic number, because the mean of its divisors is an integer number (164470922116).

Almost surely, 2^655517200099 is an apocalyptic number.

655517200099 is a deficient number, since it is larger than the sum of its proper divisors (2366488365).

655517200099 is a wasteful number, since it uses less digits than its factorization.

655517200099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366488364.

The product of its (nonzero) digits is 850500, while the sum is 49.

The spelling of 655517200099 in words is "six hundred fifty-five billion, five hundred seventeen million, two hundred thousand, ninety-nine".