83220155782258 has 12 divisors (see below), whose sum is σ = 137210091558750. Its totient is φ = 37827343537280.

The previous prime is 83220155782223. The next prime is 83220155782319. The reversal of 83220155782258 is 85228755102238.

It can be written as a sum of positive squares in only one way, i.e., 62304232249809 + 20915923532449 = 7893303^2 + 4573393^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171942470383 + ... + 171942470866.

Almost surely, 2^{83220155782258} is an apocalyptic number.

83220155782258 is a deficient number, since it is larger than the sum of its proper divisors (53989935776492).

83220155782258 is a wasteful number, since it uses less digits than its factorization.

83220155782258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343884941273 (or 343884941262 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 58.

The spelling of 83220155782258 in words is "eighty-three trillion, two hundred twenty billion, one hundred fifty-five million, seven hundred eighty-two thousand, two hundred fifty-eight".