99961635002329 has 4 divisors (see below), whose sum is σ = 100283055050880. Its totient is φ = 99640214953780.

The previous prime is 99961635002293. The next prime is 99961635002357. The reversal of 99961635002329 is 92320053616999.

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 99961635002329 - 2¹⁵ = 99961634969561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99961635009329) 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, 160710023809 + ... + 160710024430.

It is an arithmetic number, because the mean of its divisors is an integer number (25070763762720).

Almost surely, 2^{99961635002329} is an apocalyptic number.

It is an amenable number.

99961635002329 is a deficient number, since it is larger than the sum of its proper divisors (321420048551).

99961635002329 is a wasteful number, since it uses less digits than its factorization.

99961635002329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321420048550.

The product of its (nonzero) digits is 42515280, while the sum is 64.

The spelling of 99961635002329 in words is "ninety-nine trillion, nine hundred sixty-one billion, six hundred thirty-five million, two thousand, three hundred twenty-nine".