20411161120464 has 40 divisors (see below), whose sum is σ = 52738134855840. Its totient is φ = 6802520120448.

The previous prime is 20411161120447. The next prime is 20411161120529. The reversal of 20411161120464 is 46402116111402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37232962 + ... + 37777185.

It is an arithmetic number, because the mean of its divisors is an integer number (1318453371396).

Almost surely, 2^{20411161120464} is an apocalyptic number.

20411161120464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20411161120464 is an abundant number, since it is smaller than the sum of its proper divisors (32326973735376).

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

20411161120464 is a wasteful number, since it uses less digits than its factorization.

20411161120464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75015827 (or 75015821 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

Adding to 20411161120464 its reverse (46402116111402), we get a palindrome (66813277231866).

The spelling of 20411161120464 in words is "twenty trillion, four hundred eleven billion, one hundred sixty-one million, one hundred twenty thousand, four hundred sixty-four".