82158471101 has 4 divisors (see below), whose sum is σ = 93895395552. Its totient is φ = 70421546652.

The previous prime is 82158471089. The next prime is 82158471133. The reversal of 82158471101 is 10117485128.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82158471101 - 2¹⁴ = 82158454717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82158471151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5868462215 + ... + 5868462228.

It is an arithmetic number, because the mean of its divisors is an integer number (23473848888).

Almost surely, 2^82158471101 is an apocalyptic number.

It is an amenable number.

82158471101 is a deficient number, since it is larger than the sum of its proper divisors (11736924451).

82158471101 is a wasteful number, since it uses less digits than its factorization.

82158471101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11736924450.

The product of its (nonzero) digits is 17920, while the sum is 38.

The spelling of 82158471101 in words is "eighty-two billion, one hundred fifty-eight million, four hundred seventy-one thousand, one hundred one".