83820118055 has 4 divisors (see below), whose sum is σ = 100584141672. Its totient is φ = 67056094440.

The previous prime is 83820117991. The next prime is 83820118061. The reversal of 83820118055 is 55081102838.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83820118055 - 2⁶ = 83820117991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8382011801 + ... + 8382011810.

It is an arithmetic number, because the mean of its divisors is an integer number (25146035418).

Almost surely, 2^83820118055 is an apocalyptic number.

83820118055 is a deficient number, since it is larger than the sum of its proper divisors (16764023617).

83820118055 is a wasteful number, since it uses less digits than its factorization.

83820118055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16764023616.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 83820118055 in words is "eighty-three billion, eight hundred twenty million, one hundred eighteen thousand, fifty-five".