189666098424 has 256 divisors, whose sum is σ = 582052262400. Its totient is φ = 56747980800.

The previous prime is 189666098387. The next prime is 189666098437. The reversal of 189666098424 is 424890666981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78665779 + ... + 78668189.

It is an arithmetic number, because the mean of its divisors is an integer number (2273641650).

Almost surely, 2^189666098424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189666098424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291026131200).

189666098424 is an abundant number, since it is smaller than the sum of its proper divisors (392386163976).

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

189666098424 is a wasteful number, since it uses less digits than its factorization.

189666098424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 189666098424 in words is "one hundred eighty-nine billion, six hundred sixty-six million, ninety-eight thousand, four hundred twenty-four".