42156013320 has 48 divisors (see below), whose sum is σ = 137007044460. Its totient is φ = 11241603456.

The previous prime is 42156013303. The next prime is 42156013321. The reversal of 42156013320 is 2331065124.

42156013320 is a `hidden beast` number, since 4 + 2 + 1 + 5 + 601 + 33 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39420514116 + 2735499204 = 198546^2 + 52302^2 .

It is not an unprimeable number, because it can be changed into a prime (42156013321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58549659 + ... + 58550378.

Almost surely, 2^42156013320 is an apocalyptic number.

42156013320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42156013320 is an abundant number, since it is smaller than the sum of its proper divisors (94851031140).

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

42156013320 is a wasteful number, since it uses less digits than its factorization.

42156013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117100054 (or 117100047 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 42156013320 its reverse (2331065124), we get a palindrome (44487078444).

The spelling of 42156013320 in words is "forty-two billion, one hundred fifty-six million, thirteen thousand, three hundred twenty".