20415533456112 has 160 divisors (see below), whose sum is σ = 56239524249600. Its totient is φ = 6363040230144.

The previous prime is 20415533456111. The next prime is 20415533456161. The reversal of 20415533456112 is 21165433551402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20415533456111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199305613 + ... + 199408019.

It is an arithmetic number, because the mean of its divisors is an integer number (351497026560).

Almost surely, 2^{20415533456112} 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 20415533456112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28119762124800).

20415533456112 is an abundant number, since it is smaller than the sum of its proper divisors (35823990793488).

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

20415533456112 is a wasteful number, since it uses less digits than its factorization.

20415533456112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105283 (or 105277 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 20415533456112 in words is "twenty trillion, four hundred fifteen billion, five hundred thirty-three million, four hundred fifty-six thousand, one hundred twelve".