67238870166 has 24 divisors (see below), whose sum is σ = 156890697600. Its totient is φ = 20688883056.

The previous prime is 67238870161. The next prime is 67238870189. The reversal of 67238870166 is 66107883276.

It is a super-2 number, since 2×67238870166² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67238870161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143672566 + ... + 143673033.

It is an arithmetic number, because the mean of its divisors is an integer number (6537112400).

Almost surely, 2^67238870166 is an apocalyptic number.

67238870166 is an abundant number, since it is smaller than the sum of its proper divisors (89651827434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67238870166 is a wasteful number, since it uses less digits than its factorization.

67238870166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287345620 (or 287345617 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 67238870166 in words is "sixty-seven billion, two hundred thirty-eight million, eight hundred seventy thousand, one hundred sixty-six".