99199190091 has 32 divisors (see below), whose sum is σ = 135043999488. Its totient is φ = 64754202240.

The previous prime is 99199190089. The next prime is 99199190137. The reversal of 99199190091 is 19009199199.

It is not a de Polignac number, because 99199190091 - 2¹ = 99199190089 is a prime.

It is a super-3 number, since 3×99199190091³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (99199190291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44343625 + ... + 44345861.

It is an arithmetic number, because the mean of its divisors is an integer number (4220124984).

Almost surely, 2^99199190091 is an apocalyptic number.

99199190091 is a deficient number, since it is larger than the sum of its proper divisors (35844809397).

99199190091 is a wasteful number, since it uses less digits than its factorization.

99199190091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291.

The product of its (nonzero) digits is 531441, while the sum is 57.

The spelling of 99199190091 in words is "ninety-nine billion, one hundred ninety-nine million, one hundred ninety thousand, ninety-one".