20191004006 has 16 divisors (see below), whose sum is σ = 32283295200. Its totient is φ = 9437877120.

The previous prime is 20191004003. The next prime is 20191004011. The reversal of 20191004006 is 60040019102.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20191004003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987730 + ... + 1997861.

It is an arithmetic number, because the mean of its divisors is an integer number (2017705950).

Almost surely, 2^20191004006 is an apocalyptic number.

20191004006 is a deficient number, since it is larger than the sum of its proper divisors (12092291194).

20191004006 is a wasteful number, since it uses less digits than its factorization.

20191004006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985759.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20191004006 in words is "twenty billion, one hundred ninety-one million, four thousand, six".