42660420042 has 32 divisors (see below), whose sum is σ = 88098600960. Its totient is φ = 13757445360.

The previous prime is 42660420037. The next prime is 42660420067. The reversal of 42660420042 is 24002406624.

It is a super-2 number, since 2×42660420042² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42660419991 and 42660420009.

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 15 ways as a sum of consecutive naturals, for example, 649233 + ... + 711915.

It is an arithmetic number, because the mean of its divisors is an integer number (2753081280).

Almost surely, 2^42660420042 is an apocalyptic number.

42660420042 is an abundant number, since it is smaller than the sum of its proper divisors (45438180918).

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

42660420042 is a wasteful number, since it uses less digits than its factorization.

42660420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66378.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 42660420042 its reverse (24002406624), we get a palindrome (66662826666).

The spelling of 42660420042 in words is "forty-two billion, six hundred sixty million, four hundred twenty thousand, forty-two".