20004013245 has 8 divisors (see below), whose sum is σ = 32006421216. Its totient is φ = 10668807056.

The previous prime is 20004013243. The next prime is 20004013279. The reversal of 20004013245 is 54231040002.

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

It is a cyclic number.

It is not a de Polignac number, because 20004013245 - 2¹ = 20004013243 is a prime.

It is a super-2 number, since 2×20004013245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004013243) 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, 666800427 + ... + 666800456.

It is an arithmetic number, because the mean of its divisors is an integer number (4000802652).

Almost surely, 2^20004013245 is an apocalyptic number.

It is an amenable number.

20004013245 is a deficient number, since it is larger than the sum of its proper divisors (12002407971).

20004013245 is a wasteful number, since it uses less digits than its factorization.

20004013245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333600891.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20004013245 its reverse (54231040002), we get a palindrome (74235053247).

The spelling of 20004013245 in words is "twenty billion, four million, thirteen thousand, two hundred forty-five".