20004352515170 has 8 divisors (see below), whose sum is σ = 36007834527324. Its totient is φ = 8001741006064.

The previous prime is 20004352515157. The next prime is 20004352515193. The reversal of 20004352515170 is 7151525340002.

It can be written as a sum of positive squares in 2 ways, for example, as 19759082924161 + 245269591009 = 4445119^2 + 495247^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20004352515170.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000217625749 + ... + 1000217625768.

Almost surely, 2^{20004352515170} is an apocalyptic number.

20004352515170 is a deficient number, since it is larger than the sum of its proper divisors (16003482012154).

20004352515170 is a wasteful number, since it uses less digits than its factorization.

20004352515170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000435251524.

The product of its (nonzero) digits is 42000, while the sum is 35.

Adding to 20004352515170 its reverse (7151525340002), we get a palindrome (27155877855172).

The spelling of 20004352515170 in words is "twenty trillion, four billion, three hundred fifty-two million, five hundred fifteen thousand, one hundred seventy".