42020436660 has 96 divisors (see below), whose sum is σ = 120209682432. Its totient is φ = 10964782080.

The previous prime is 42020436641. The next prime is 42020436683. The reversal of 42020436660 is 6663402024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 518490 + ... + 594030.

It is an arithmetic number, because the mean of its divisors is an integer number (1252184192).

Almost surely, 2^42020436660 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 42020436660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60104841216).

42020436660 is an abundant number, since it is smaller than the sum of its proper divisors (78189245772).

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

42020436660 is a wasteful number, since it uses less digits than its factorization.

42020436660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75753 (or 75751 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 42020436660 its reverse (6663402024), we get a palindrome (48683838684).

The spelling of 42020436660 in words is "forty-two billion, twenty million, four hundred thirty-six thousand, six hundred sixty".