42055641320 has 128 divisors (see below), whose sum is σ = 119974348800. Its totient is φ = 12886022400.

The previous prime is 42055641317. The next prime is 42055641347. The reversal of 42055641320 is 2314655024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66005 + ... + 297435.

It is an arithmetic number, because the mean of its divisors is an integer number (937299600).

Almost surely, 2^42055641320 is an apocalyptic number.

42055641320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42055641320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59987174400).

42055641320 is an abundant number, since it is smaller than the sum of its proper divisors (77918707480).

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

42055641320 is a wasteful number, since it uses less digits than its factorization.

42055641320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231519 (or 231515 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 42055641320 in words is "forty-two billion, fifty-five million, six hundred forty-one thousand, three hundred twenty".