20411511605006 has 64 divisors (see below), whose sum is σ = 33573031372800. Its totient is φ = 9271075968000.

The previous prime is 20411511604999. The next prime is 20411511605021. The reversal of 20411511605006 is 60050611511402.

It is a super-2 number, since 2×20411511605006² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 469737581 + ... + 469781031.

It is an arithmetic number, because the mean of its divisors is an integer number (524578615200).

Almost surely, 2^{20411511605006} is an apocalyptic number.

20411511605006 is a deficient number, since it is larger than the sum of its proper divisors (13161519767794).

20411511605006 is a wasteful number, since it uses less digits than its factorization.

20411511605006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47145.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 20411511605006 in words is "twenty trillion, four hundred eleven billion, five hundred eleven million, six hundred five thousand, six".