83301671991 has 16 divisors (see below), whose sum is σ = 112197223424. Its totient is φ = 54970765344.

The previous prime is 83301671939. The next prime is 83301672011. The reversal of 83301671991 is 19917610338.

It is not a de Polignac number, because 83301671991 - 2¹⁸ = 83301409847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83301671991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83301671591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647745 + ... + 765621.

It is an arithmetic number, because the mean of its divisors is an integer number (7012326464).

Almost surely, 2^83301671991 is an apocalyptic number.

83301671991 is a deficient number, since it is larger than the sum of its proper divisors (28895551433).

83301671991 is a wasteful number, since it uses less digits than its factorization.

83301671991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120270.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 83301671991 in words is "eighty-three billion, three hundred one million, six hundred seventy-one thousand, nine hundred ninety-one".