20411624255316 has 96 divisors (see below), whose sum is σ = 54878593416192. Its totient is φ = 5784014088960.

The previous prime is 20411624255311. The next prime is 20411624255327. The reversal of 20411624255316 is 61355242611402.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411624255311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11742355 + ... + 13368101.

It is an arithmetic number, because the mean of its divisors is an integer number (571652014752).

Almost surely, 2^{20411624255316} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20411624255316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27439296708096).

20411624255316 is an abundant number, since it is smaller than the sum of its proper divisors (34466969160876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20411624255316 is a wasteful number, since it uses less digits than its factorization.

20411624255316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626989 (or 1626987 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

Adding to 20411624255316 its reverse (61355242611402), we get a palindrome (81766866866718).

The spelling of 20411624255316 in words is "twenty trillion, four hundred eleven billion, six hundred twenty-four million, two hundred fifty-five thousand, three hundred sixteen".