189159406080 has 160 divisors (see below), whose sum is σ = 605555438400. Its totient is φ = 50372739072.

The previous prime is 189159406067. The next prime is 189159406081. The reversal of 189159406080 is 80604951981.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (189159406081) 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, 5658856 + ... + 5692184.

It is an arithmetic number, because the mean of its divisors is an integer number (3784721490).

Almost surely, 2^189159406080 is an apocalyptic number.

189159406080 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 189159406080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302777719200).

189159406080 is an abundant number, since it is smaller than the sum of its proper divisors (416396032320).

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

189159406080 is an equidigital number, since it uses as much as digits as its factorization.

189159406080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34094 (or 34078 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The spelling of 189159406080 in words is "one hundred eighty-nine billion, one hundred fifty-nine million, four hundred six thousand, eighty".