42166532020 has 12 divisors (see below), whose sum is σ = 88549717284. Its totient is φ = 16866612800.

The previous prime is 42166531973. The next prime is 42166532047. The reversal of 42166532020 is 2023566124.

42166532020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13617022864 + 28549509156 = 116692^2 + 168966^2 .

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, 1054163281 + ... + 1054163320.

It is an arithmetic number, because the mean of its divisors is an integer number (7379143107).

Almost surely, 2^42166532020 is an apocalyptic number.

It is an amenable number.

42166532020 is an abundant number, since it is smaller than the sum of its proper divisors (46383185264).

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

42166532020 is a wasteful number, since it uses less digits than its factorization.

42166532020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108326610 (or 2108326608 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 42166532020 in words is "forty-two billion, one hundred sixty-six million, five hundred thirty-two thousand, twenty".