20411012555147 has 16 divisors (see below), whose sum is σ = 21143154732000. Its totient is φ = 19680764431104.

The previous prime is 20411012555093. The next prime is 20411012555177. The reversal of 20411012555147 is 74155521011402.

It is a cyclic number.

It is not a de Polignac number, because 20411012555147 - 2²² = 20411008360843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20411012555147.

It is not an unprimeable number, because it can be changed into a prime (20411012555177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192106604 + ... + 192212822.

It is an arithmetic number, because the mean of its divisors is an integer number (1321447170750).

Almost surely, 2^{20411012555147} is an apocalyptic number.

20411012555147 is a deficient number, since it is larger than the sum of its proper divisors (732142176853).

20411012555147 is a wasteful number, since it uses less digits than its factorization.

20411012555147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115070.

The product of its (nonzero) digits is 56000, while the sum is 38.

Adding to 20411012555147 its reverse (74155521011402), we get a palindrome (94566533566549).

The spelling of 20411012555147 in words is "twenty trillion, four hundred eleven billion, twelve million, five hundred fifty-five thousand, one hundred forty-seven".