42020322166 has 8 divisors (see below), whose sum is σ = 63184593240. Its totient is φ = 20958791088.

The previous prime is 42020322163. The next prime is 42020322173. The reversal of 42020322166 is 66122302024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020322163) 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, 25683976 + ... + 25685611.

It is an arithmetic number, because the mean of its divisors is an integer number (7898074155).

Almost surely, 2^42020322166 is an apocalyptic number.

42020322166 is a deficient number, since it is larger than the sum of its proper divisors (21164271074).

42020322166 is a wasteful number, since it uses less digits than its factorization.

42020322166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51369998.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 42020322166 in words is "forty-two billion, twenty million, three hundred twenty-two thousand, one hundred sixty-six".