42156660513 has 16 divisors (see below), whose sum is σ = 61825551552. Its totient is φ = 25549488800.

The previous prime is 42156660499. The next prime is 42156660529. The reversal of 42156660513 is 31506665124.

42156660513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42156660513 - 2²¹ = 42154563361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42156660613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5274828 + ... + 5282813.

It is an arithmetic number, because the mean of its divisors is an integer number (3864096972).

Almost surely, 2^42156660513 is an apocalyptic number.

It is an amenable number.

42156660513 is a deficient number, since it is larger than the sum of its proper divisors (19668891039).

42156660513 is a wasteful number, since it uses less digits than its factorization.

42156660513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10557677 (or 10557655 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 42156660513 in words is "forty-two billion, one hundred fifty-six million, six hundred sixty thousand, five hundred thirteen".