99414938561 has 4 divisors (see below), whose sum is σ = 99417572352. Its totient is φ = 99412304772.

The previous prime is 99414938549. The next prime is 99414938587. The reversal of 99414938561 is 16583941499.

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 99414938561 - 2¹⁰ = 99414937537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99414938561.

It is not an unprimeable number, because it can be changed into a prime (99414938261) 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, 1259441 + ... + 1336046.

It is an arithmetic number, because the mean of its divisors is an integer number (24854393088).

Almost surely, 2^99414938561 is an apocalyptic number.

It is an amenable number.

99414938561 is a deficient number, since it is larger than the sum of its proper divisors (2633791).

99414938561 is a wasteful number, since it uses less digits than its factorization.

99414938561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633790.

The product of its digits is 8398080, while the sum is 59.

The spelling of 99414938561 in words is "ninety-nine billion, four hundred fourteen million, nine hundred thirty-eight thousand, five hundred sixty-one".