42165516 has 24 divisors (see below), whose sum is σ = 98555184. Its totient is φ = 14031040.

The previous prime is 42165467. The next prime is 42165517. The reversal of 42165516 is 61556124.

It is not an unprimeable number, because it can be changed into a prime (42165517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5146 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (4106466).

Almost surely, 2^42165516 is an apocalyptic number.

It is an amenable number.

42165516 is an abundant number, since it is smaller than the sum of its proper divisors (56389668).

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

42165516 is a wasteful number, since it uses less digits than its factorization.

42165516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041 (or 6039 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 42165516 is about 6493.4979787477. The cubic root of 42165516 is about 348.0586834581.

The spelling of 42165516 in words is "forty-two million, one hundred sixty-five thousand, five hundred sixteen".