99162051281 has 8 divisors (see below), whose sum is σ = 100471201920. Its totient is φ = 97854249168.

The previous prime is 99162051269. The next prime is 99162051341. The reversal of 99162051281 is 18215026199.

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 99162051281 - 2¹⁸ = 99161789137 is a prime.

It is a super-2 number, since 2×99162051281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99162051211) 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 7 ways as a sum of consecutive naturals, for example, 188666 + ... + 483651.

It is an arithmetic number, because the mean of its divisors is an integer number (12558900240).

Almost surely, 2^99162051281 is an apocalyptic number.

It is an amenable number.

99162051281 is a deficient number, since it is larger than the sum of its proper divisors (1309150639).

99162051281 is a wasteful number, since it uses less digits than its factorization.

99162051281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674263.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 99162051281 in words is "ninety-nine billion, one hundred sixty-two million, fifty-one thousand, two hundred eighty-one".