99553000641 has 4 divisors (see below), whose sum is σ = 132737334192. Its totient is φ = 66368667092.

The previous prime is 99553000633. The next prime is 99553000691. The reversal of 99553000641 is 14600035599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99553000641 - 2³ = 99553000633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99553000593 and 99553000602.

It is not an unprimeable number, because it can be changed into a prime (99553000691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16592166771 + ... + 16592166776.

It is an arithmetic number, because the mean of its divisors is an integer number (33184333548).

Almost surely, 2^99553000641 is an apocalyptic number.

99553000641 is the 199553-rd centered pentagonal number.

It is an amenable number.

99553000641 is a deficient number, since it is larger than the sum of its proper divisors (33184333551).

99553000641 is a wasteful number, since it uses less digits than its factorization.

99553000641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33184333550.

The product of its (nonzero) digits is 145800, while the sum is 42.

The spelling of 99553000641 in words is "ninety-nine billion, five hundred fifty-three million, six hundred forty-one", and thus it is an aban number.