194425664496 has 160 divisors (see below), whose sum is σ = 588258777600. Its totient is φ = 55310685696.

The previous prime is 194425664473. The next prime is 194425664497. The reversal of 194425664496 is 694466524491.

It is a super-2 number, since 2×194425664496² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194425664497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3810771 + ... + 3861453.

It is an arithmetic number, because the mean of its divisors is an integer number (3676617360).

Almost surely, 2^194425664496 is an apocalyptic number.

194425664496 is a gapful number since it is divisible by the number (16) 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 194425664496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294129388800).

194425664496 is an abundant number, since it is smaller than the sum of its proper divisors (393833113104).

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

194425664496 is a wasteful number, since it uses less digits than its factorization.

194425664496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50948 (or 50928 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 60.

The spelling of 194425664496 in words is "one hundred ninety-four billion, four hundred twenty-five million, six hundred sixty-four thousand, four hundred ninety-six".