83871166531 has 8 divisors (see below), whose sum is σ = 86662524800. Its totient is φ = 81085173120.

The previous prime is 83871166517. The next prime is 83871166541. The reversal of 83871166531 is 13566117838.

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 83871166531 - 2¹³ = 83871158339 is a prime.

It is a super-3 number, since 3×83871166531³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83871166541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309416 + ... + 1371973.

It is an arithmetic number, because the mean of its divisors is an integer number (10832815600).

Almost surely, 2^83871166531 is an apocalyptic number.

83871166531 is a deficient number, since it is larger than the sum of its proper divisors (2791358269).

83871166531 is a wasteful number, since it uses less digits than its factorization.

83871166531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682429.

The product of its digits is 725760, while the sum is 49.

The spelling of 83871166531 in words is "eighty-three billion, eight hundred seventy-one million, one hundred sixty-six thousand, five hundred thirty-one".