20005111437360 has 320 divisors, whose sum is σ = 72426078720000. Its totient is φ = 4472658763776.

The previous prime is 20005111437349. The next prime is 20005111437383. The reversal of 20005111437360 is 6373411150002.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134868516 + ... + 135016764.

It is an arithmetic number, because the mean of its divisors is an integer number (226331496000).

Almost surely, 2^{20005111437360} is an apocalyptic number.

20005111437360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20005111437360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36213039360000).

20005111437360 is an abundant number, since it is smaller than the sum of its proper divisors (52420967282640).

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

20005111437360 is a wasteful number, since it uses less digits than its factorization.

20005111437360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150028 (or 150022 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 20005111437360 its reverse (6373411150002), we get a palindrome (26378522587362).

The spelling of 20005111437360 in words is "twenty trillion, five billion, one hundred eleven million, four hundred thirty-seven thousand, three hundred sixty".