99194598642 has 16 divisors (see below), whose sum is σ = 198659859840.
Its totient is φ = 33019755792.
The previous prime is 99194598637. The next prime is 99194598661. The reversal of 99194598642 is 24689549199.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11272842 + ... + 11281637.
It is an arithmetic number, because the mean of its divisors is an integer number (12416241240).
Almost surely, 299194598642 is an apocalyptic number.
99194598642 is an abundant number, since it is smaller than the sum of its proper divisors (99465261198).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99194598642 is a wasteful number, since it uses less digits than its factorization.
99194598642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22555217.
The product of its digits is 50388480, while the sum is 66.
The spelling of 99194598642 in words is "ninety-nine billion, one hundred ninety-four million, five hundred ninety-eight thousand, six hundred forty-two".