9955267399 has 24 divisors (see below), whose sum is σ = 12974919552. Its totient is φ = 7420044720.

The previous prime is 9955267391. The next prime is 9955267409. The reversal of 9955267399 is 9937625599.

It is not a de Polignac number, because 9955267399 - 2³ = 9955267391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9955267399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955267391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81469 + ... + 162934.

It is an arithmetic number, because the mean of its divisors is an integer number (540621648).

Almost surely, 2^9955267399 is an apocalyptic number.

9955267399 is a deficient number, since it is larger than the sum of its proper divisors (3019652153).

9955267399 is a wasteful number, since it uses less digits than its factorization.

9955267399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244467 (or 244444 counting only the distinct ones).

The product of its digits is 41334300, while the sum is 64.

The square root of 9955267399 is about 99776.0863082933. The cubic root of 9955267399 is about 2151.2174391402.

The spelling of 9955267399 in words is "nine billion, nine hundred fifty-five million, two hundred sixty-seven thousand, three hundred ninety-nine".