40142213073161 has 16 divisors (see below), whose sum is σ = 41277391447680. Its totient is φ = 39009693127680.

The previous prime is 40142213073143. The next prime is 40142213073167. The reversal of 40142213073161 is 16137031224104.

It is a cyclic number.

It is not a de Polignac number, because 40142213073161 - 2⁶ = 40142213073097 is a prime.

It is a super-2 number, since 2×40142213073161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40142213073167) 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, 222722921 + ... + 222903081.

It is an arithmetic number, because the mean of its divisors is an integer number (2579836965480).

Almost surely, 2^{40142213073161} is an apocalyptic number.

It is an amenable number.

40142213073161 is a deficient number, since it is larger than the sum of its proper divisors (1135178374519).

40142213073161 is a wasteful number, since it uses less digits than its factorization.

40142213073161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187504.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 40142213073161 its reverse (16137031224104), we get a palindrome (56279244297265).

The spelling of 40142213073161 in words is "forty trillion, one hundred forty-two billion, two hundred thirteen million, seventy-three thousand, one hundred sixty-one".