167994880 has 80 divisors (see below), whose sum is σ = 406581120. Its totient is φ = 66568192.

The previous prime is 167994877. The next prime is 167994881. The reversal of 167994880 is 88499761.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167994881) 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, 350481 + ... + 350959.

It is an arithmetic number, because the mean of its divisors is an integer number (5082264).

Almost surely, 2^167994880 is an apocalyptic number.

167994880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 167994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203290560).

167994880 is an abundant number, since it is smaller than the sum of its proper divisors (238586240).

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

167994880 is an equidigital number, since it uses as much as digits as its factorization.

167994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 167994880 is about 12961.2838870229. The cubic root of 167994880 is about 551.7792297860.

The spelling of 167994880 in words is "one hundred sixty-seven million, nine hundred ninety-four thousand, eight hundred eighty".