42666206044 has 24 divisors (see below), whose sum is σ = 93089904768. Its totient is φ = 16623197040.

The previous prime is 42666206041. The next prime is 42666206071. The reversal of 42666206044 is 44060266624.

It is a junction number, because it is equal to n+sod(n) for n = 42666205988 and 42666206006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42666206041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69263014 + ... + 69263629.

It is an arithmetic number, because the mean of its divisors is an integer number (3878746032).

Almost surely, 2^42666206044 is an apocalyptic number.

42666206044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42666206044 is an abundant number, since it is smaller than the sum of its proper divisors (50423698724).

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

42666206044 is a wasteful number, since it uses less digits than its factorization.

42666206044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138526665 (or 138526663 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 42666206044 in words is "forty-two billion, six hundred sixty-six million, two hundred six thousand, forty-four".