99616261698 has 32 divisors (see below), whose sum is σ = 233020497600. Its totient is φ = 31457766528.

The previous prime is 99616261697. The next prime is 99616261799. The reversal of 99616261698 is 89616261699.

99616261698 is a `hidden beast` number, since 9 + 9 + 6 + 1 + 6 + 2 + 616 + 9 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99616261697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48544911 + ... + 48546962.

It is an arithmetic number, because the mean of its divisors is an integer number (7281890550).

Almost surely, 2^99616261698 is an apocalyptic number.

99616261698 is an abundant number, since it is smaller than the sum of its proper divisors (133404235902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99616261698 is a wasteful number, since it uses less digits than its factorization.

99616261698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97091903 (or 97091897 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

Subtracting from 99616261698 its reverse (89616261699), we obtain a palindrome (9999999999).

The spelling of 99616261698 in words is "ninety-nine billion, six hundred sixteen million, two hundred sixty-one thousand, six hundred ninety-eight".