83220372198 has 24 divisors (see below), whose sum is σ = 180320388768. Its totient is φ = 27738649872.

The previous prime is 83220372143. The next prime is 83220372233. The reversal of 83220372198 is 89127302238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257011 + ... + 482177.

It is an arithmetic number, because the mean of its divisors is an integer number (7513349532).

Almost surely, 2^83220372198 is an apocalyptic number.

83220372198 is an abundant number, since it is smaller than the sum of its proper divisors (97100016570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83220372198 is a wasteful number, since it uses less digits than its factorization.

83220372198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245708 (or 245705 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

It can be divided in two parts, 832203 and 72198, that added together give a square (904401 = 951²).

The spelling of 83220372198 in words is "eighty-three billion, two hundred twenty million, three hundred seventy-two thousand, one hundred ninety-eight".