67142202171 has 32 divisors (see below), whose sum is σ = 99809280000. Its totient is φ = 39798504480.

The previous prime is 67142202161. The next prime is 67142202217. The reversal of 67142202171 is 17120224176.

It is not a de Polignac number, because 67142202171 - 2³⁵ = 32782463803 is a prime.

It is a super-2 number, since 2×67142202171² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (67142202161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2310510 + ... + 2339388.

It is an arithmetic number, because the mean of its divisors is an integer number (3119040000).

Almost surely, 2^67142202171 is an apocalyptic number.

67142202171 is a deficient number, since it is larger than the sum of its proper divisors (32667077829).

67142202171 is a wasteful number, since it uses less digits than its factorization.

67142202171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30439.

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 67142202171 in words is "sixty-seven billion, one hundred forty-two million, two hundred two thousand, one hundred seventy-one".