99065976381 has 12 divisors (see below), whose sum is σ = 143107922880. Its totient is φ = 66038157960.

The previous prime is 99065976371. The next prime is 99065976397. The reversal of 99065976381 is 18367956099.

99065976381 is a `hidden beast` number, since 9 + 9 + 0 + 6 + 597 + 6 + 38 + 1 = 666.

It is not a de Polignac number, because 99065976381 - 2¹⁷ = 99065845309 is a prime.

It is a super-2 number, since 2×99065976381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99065976371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 376551 + ... + 583028.

It is an arithmetic number, because the mean of its divisors is an integer number (11925660240).

Almost surely, 2^99065976381 is an apocalyptic number.

It is an amenable number.

99065976381 is a deficient number, since it is larger than the sum of its proper divisors (44041946499).

99065976381 is a wasteful number, since it uses less digits than its factorization.

99065976381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971056 (or 971053 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 99065976381 in words is "ninety-nine billion, sixty-five million, nine hundred seventy-six thousand, three hundred eighty-one".