194432898660 has 432 divisors, whose sum is σ = 749666046528. Its totient is φ = 37292935680.

The previous prime is 194432898643. The next prime is 194432898703. The reversal of 194432898660 is 66898234491.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 194432898594 and 194432898603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4603599 + ... + 4645641.

Almost surely, 2^194432898660 is an apocalyptic number.

194432898660 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 194432898660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374833023264).

194432898660 is an abundant number, since it is smaller than the sum of its proper divisors (555233147868).

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

194432898660 is a wasteful number, since it uses less digits than its factorization.

194432898660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42104 (or 42084 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 194432898660 in words is "one hundred ninety-four billion, four hundred thirty-two million, eight hundred ninety-eight thousand, six hundred sixty".