99605545111 has 4 divisors (see below), whose sum is σ = 99660547224. Its totient is φ = 99550543000.

The previous prime is 99605545049. The next prime is 99605545183. The reversal of 99605545111 is 11154550699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11154550699 = 191 ⋅58400789.

It is a cyclic number.

It is not a de Polignac number, because 99605545111 - 2¹⁷ = 99605414039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99605545411) 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, 27498340 + ... + 27501961.

It is an arithmetic number, because the mean of its divisors is an integer number (24915136806).

Almost surely, 2^99605545111 is an apocalyptic number.

99605545111 is a deficient number, since it is larger than the sum of its proper divisors (55002113).

99605545111 is a wasteful number, since it uses less digits than its factorization.

99605545111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55002112.

The product of its (nonzero) digits is 243000, while the sum is 46.

The spelling of 99605545111 in words is "ninety-nine billion, six hundred five million, five hundred forty-five thousand, one hundred eleven".