42161121106 has 32 divisors (see below), whose sum is σ = 74807994240. Its totient is φ = 17633303424.

The previous prime is 42161121091. The next prime is 42161121109. The reversal of 42161121106 is 60112116124.

It is not an unprimeable number, because it can be changed into a prime (42161121109) 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, 1843995 + ... + 1866718.

It is an arithmetic number, because the mean of its divisors is an integer number (2337749820).

Almost surely, 2^42161121106 is an apocalyptic number.

42161121106 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42161121106 is a deficient number, since it is larger than the sum of its proper divisors (32646873134).

42161121106 is a wasteful number, since it uses less digits than its factorization.

42161121106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710770.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 42161121106 in words is "forty-two billion, one hundred sixty-one million, one hundred twenty-one thousand, one hundred six".