99021943138705 has 8 divisors (see below), whose sum is σ = 121354551591552. Its totient is φ = 77532074627568.

The previous prime is 99021943138667. The next prime is 99021943138717. The reversal of 99021943138705 is 50783134912099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99021943138705 - 2¹⁷ = 99021943007633 is a prime.

It is a Duffinian number.

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, 210684985167 + ... + 210684985636.

It is an arithmetic number, because the mean of its divisors is an integer number (15169318948944).

Almost surely, 2^{99021943138705} is an apocalyptic number.

It is an amenable number.

99021943138705 is a deficient number, since it is larger than the sum of its proper divisors (22332608452847).

99021943138705 is a wasteful number, since it uses less digits than its factorization.

99021943138705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421369970855.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 99021943138705 in words is "ninety-nine trillion, twenty-one billion, nine hundred forty-three million, one hundred thirty-eight thousand, seven hundred five".