20042016247 has 8 divisors (see below), whose sum is σ = 21869527680. Its totient is φ = 18215423160.

The previous prime is 20042016233. The next prime is 20042016251. The reversal of 20042016247 is 74261024002.

It is a happy number.

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

It is not a de Polignac number, because 20042016247 - 2¹⁹ = 20041491959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042016217) 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, 183547 + ... + 271612.

It is an arithmetic number, because the mean of its divisors is an integer number (2733690960).

Almost surely, 2^20042016247 is an apocalyptic number.

20042016247 is a deficient number, since it is larger than the sum of its proper divisors (1827511433).

20042016247 is a wasteful number, since it uses less digits than its factorization.

20042016247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459173.

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 20042016247 in words is "twenty billion, forty-two million, sixteen thousand, two hundred forty-seven".