42156165011 has 8 divisors (see below), whose sum is σ = 42244169424. Its totient is φ = 42068198880.

The previous prime is 42156165001. The next prime is 42156165017. The reversal of 42156165011 is 11056165124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42156165011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42156165017) 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, 3441680 + ... + 3453906.

It is an arithmetic number, because the mean of its divisors is an integer number (5280521178).

Almost surely, 2^42156165011 is an apocalyptic number.

42156165011 is a deficient number, since it is larger than the sum of its proper divisors (88004413).

42156165011 is a wasteful number, since it uses less digits than its factorization.

42156165011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19141.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 42156165011 in words is "forty-two billion, one hundred fifty-six million, one hundred sixty-five thousand, eleven".