20415506000450 has 96 divisors (see below), whose sum is σ = 41472535498560. Its totient is φ = 7415291520000.

The previous prime is 20415506000413. The next prime is 20415506000467. The reversal of 20415506000450 is 5400060551402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3471431510 + ... + 3471437390.

It is an arithmetic number, because the mean of its divisors is an integer number (432005578110).

Almost surely, 2^{20415506000450} is an apocalyptic number.

20415506000450 is an abundant number, since it is smaller than the sum of its proper divisors (21057029498110).

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

20415506000450 is a wasteful number, since it uses less digits than its factorization.

20415506000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12084 (or 12079 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 20415506000450 its reverse (5400060551402), we get a palindrome (25815566551852).

The spelling of 20415506000450 in words is "twenty trillion, four hundred fifteen billion, five hundred six million, four hundred fifty", and thus it is an aban number.