42066156500 has 48 divisors (see below), whose sum is σ = 92186364816. Its totient is φ = 16768976000.

The previous prime is 42066156491. The next prime is 42066156511. The reversal of 42066156500 is 565166024.

It can be written as a sum of positive squares in 8 ways, for example, as 304781764 + 41761374736 = 17458^2 + 204356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2930 + ... + 290070.

It is an arithmetic number, because the mean of its divisors is an integer number (1920549267).

Almost surely, 2^42066156500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42066156500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46093182408).

42066156500 is an abundant number, since it is smaller than the sum of its proper divisors (50120208316).

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

42066156500 is a wasteful number, since it uses less digits than its factorization.

42066156500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287453 (or 287441 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 42066156500 in words is "forty-two billion, sixty-six million, one hundred fifty-six thousand, five hundred".