42332112161 has 8 divisors (see below), whose sum is σ = 42380029440. Its totient is φ = 42284220832.

The previous prime is 42332112133. The next prime is 42332112167. The reversal of 42332112161 is 16121123324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42332112161 - 2¹⁰ = 42332111137 is a prime.

It is a super-2 number, since 2×42332112161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42332112161.

It is not an unprimeable number, because it can be changed into a prime (42332112167) 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, 6058676 + ... + 6065658.

It is an arithmetic number, because the mean of its divisors is an integer number (5297503680).

Almost surely, 2^42332112161 is an apocalyptic number.

It is an amenable number.

42332112161 is a deficient number, since it is larger than the sum of its proper divisors (47917279).

42332112161 is a wasteful number, since it uses less digits than its factorization.

42332112161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12975.

The product of its digits is 1728, while the sum is 26.

Adding to 42332112161 its reverse (16121123324), we get a palindrome (58453235485).

The spelling of 42332112161 in words is "forty-two billion, three hundred thirty-two million, one hundred twelve thousand, one hundred sixty-one".