42020166452 has 96 divisors (see below), whose sum is σ = 86094005760. Its totient is φ = 17744400000.

The previous prime is 42020166451. The next prime is 42020166467. The reversal of 42020166452 is 25466102024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020166451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9032327 + ... + 9036977.

It is an arithmetic number, because the mean of its divisors is an integer number (896812560).

Almost surely, 2^42020166452 is an apocalyptic number.

It is an amenable number.

42020166452 is an abundant number, since it is smaller than the sum of its proper divisors (44073839308).

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

42020166452 is a wasteful number, since it uses less digits than its factorization.

42020166452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 42020166452 its reverse (25466102024), we get a palindrome (67486268476).

The spelling of 42020166452 in words is "forty-two billion, twenty million, one hundred sixty-six thousand, four hundred fifty-two".