20415030352100 has 36 divisors (see below), whose sum is σ = 44318764946148. Its totient is φ = 8162666688000.

The previous prime is 20415030352039. The next prime is 20415030352133. The reversal of 20415030352100 is 125303051402.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3287483912164 + 17127546439936 = 1813142^2 + 4138544^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20415030352100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41572841 + ... + 42061040.

Almost surely, 2^{20415030352100} is an apocalyptic number.

20415030352100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20415030352100 is an abundant number, since it is smaller than the sum of its proper divisors (23903734594048).

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

20415030352100 is a wasteful number, since it uses less digits than its factorization.

20415030352100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83636336 (or 83636329 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 20415030352100 in words is "twenty trillion, four hundred fifteen billion, thirty million, three hundred fifty-two thousand, one hundred".