83572066291 has 16 divisors (see below), whose sum is σ = 97166951680. Its totient is φ = 70396270560.

The previous prime is 83572066273. The next prime is 83572066313. The reversal of 83572066291 is 19266027538.

It is a de Polignac number, because none of the positive numbers 2^k-83572066291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83572066261) 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, 14181 + ... + 409078.

It is an arithmetic number, because the mean of its divisors is an integer number (6072934480).

Almost surely, 2^83572066291 is an apocalyptic number.

83572066291 is a deficient number, since it is larger than the sum of its proper divisors (13594885389).

83572066291 is a wasteful number, since it uses less digits than its factorization.

83572066291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423754.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 83572066291 in words is "eighty-three billion, five hundred seventy-two million, sixty-six thousand, two hundred ninety-one".