20005150424475 has 24 divisors (see below), whose sum is σ = 33075702912880. Its totient is φ = 10669245534720.

The previous prime is 20005150424473. The next prime is 20005150424491. The reversal of 20005150424475 is 57442405150002.

It is not a de Polignac number, because 20005150424475 - 2¹ = 20005150424473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20005150424473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2768607 + ... + 6904743.

Almost surely, 2^{20005150424475} is an apocalyptic number.

20005150424475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20005150424475 is a deficient number, since it is larger than the sum of its proper divisors (13070552488405).

20005150424475 is a wasteful number, since it uses less digits than its factorization.

20005150424475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200639 (or 4200634 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 39.

Adding to 20005150424475 its reverse (57442405150002), we get a palindrome (77447555574477).

The spelling of 20005150424475 in words is "twenty trillion, five billion, one hundred fifty million, four hundred twenty-four thousand, four hundred seventy-five".