42032031666 has 32 divisors (see below), whose sum is σ = 86002570368. Its totient is φ = 13691086080.

The previous prime is 42032031661. The next prime is 42032031673. The reversal of 42032031666 is 66613023024.

It is not an unprimeable number, because it can be changed into a prime (42032031661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388441 + ... + 484716.

It is an arithmetic number, because the mean of its divisors is an integer number (2687580324).

Almost surely, 2^42032031666 is an apocalyptic number.

42032031666 is an abundant number, since it is smaller than the sum of its proper divisors (43970538702).

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

42032031666 is a wasteful number, since it uses less digits than its factorization.

42032031666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873346.

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 42032031666 in words is "forty-two billion, thirty-two million, thirty-one thousand, six hundred sixty-six".