42162661420 has 96 divisors (see below), whose sum is σ = 99005276160. Its totient is φ = 14952752640.

The previous prime is 42162661403. The next prime is 42162661427. The reversal of 42162661420 is 2416626124.

It is not an unprimeable number, because it can be changed into a prime (42162661427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1635672 + ... + 1661248.

It is an arithmetic number, because the mean of its divisors is an integer number (1031304960).

Almost surely, 2^42162661420 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 42162661420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49502638080).

42162661420 is an abundant number, since it is smaller than the sum of its proper divisors (56842614740).

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

42162661420 is a wasteful number, since it uses less digits than its factorization.

42162661420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25783 (or 25781 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 42162661420 in words is "forty-two billion, one hundred sixty-two million, six hundred sixty-one thousand, four hundred twenty".