20169741894 has 8 divisors (see below), whose sum is σ = 40339483800. Its totient is φ = 6723247296.

The previous prime is 20169741847. The next prime is 20169741899. The reversal of 20169741894 is 49814796102.

It is a sphenic number, since it is the product of 3 distinct primes.

20169741894 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20169741899) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1680811819 + ... + 1680811830.

It is an arithmetic number, because the mean of its divisors is an integer number (5042435475).

Almost surely, 2^20169741894 is an apocalyptic number.

20169741894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20169741894 is a wasteful number, since it uses less digits than its factorization.

20169741894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361623654.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 20169741894 in words is "twenty billion, one hundred sixty-nine million, seven hundred forty-one thousand, eight hundred ninety-four".