20194471296 has 96 divisors (see below), whose sum is σ = 58328618400. Its totient is φ = 6706363392.

The previous prime is 20194471259. The next prime is 20194471303. The reversal of 20194471296 is 69217449102.

20194471296 is a `hidden beast` number, since 2 + 0 + 1 + 94 + 471 + 2 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 277305 + ... + 342471.

It is an arithmetic number, because the mean of its divisors is an integer number (607589775).

Almost surely, 2^20194471296 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 20194471296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29164309200).

20194471296 is an abundant number, since it is smaller than the sum of its proper divisors (38134147104).

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

20194471296 is a wasteful number, since it uses less digits than its factorization.

20194471296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65456 (or 65441 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 20194471296 in words is "twenty billion, one hundred ninety-four million, four hundred seventy-one thousand, two hundred ninety-six".