99718223256 has 40 divisors (see below), whose sum is σ = 279303358620. Its totient is φ = 33239407536.

The previous prime is 99718223233. The next prime is 99718223273. The reversal of 99718223256 is 65232281799.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 76942426 + ... + 76943721.

Almost surely, 2^99718223256 is an apocalyptic number.

It is an amenable number.

99718223256 is an abundant number, since it is smaller than the sum of its proper divisors (179585135364).

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

99718223256 is a wasteful number, since it uses less digits than its factorization.

99718223256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153886165 (or 153886152 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 99718223256 in words is "ninety-nine billion, seven hundred eighteen million, two hundred twenty-three thousand, two hundred fifty-six".