20512102600 has 48 divisors (see below), whose sum is σ = 52026156720. Its totient is φ = 7458945600.

The previous prime is 20512102571. The next prime is 20512102601. The reversal of 20512102600 is 620121502.

It is not an unprimeable number, because it can be changed into a prime (20512102601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4659642 + ... + 4664041.

It is an arithmetic number, because the mean of its divisors is an integer number (1083878265).

Almost surely, 2^20512102600 is an apocalyptic number.

20512102600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20512102600 is an abundant number, since it is smaller than the sum of its proper divisors (31514054120).

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

20512102600 is a wasteful number, since it uses less digits than its factorization.

20512102600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9323710 (or 9323701 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The spelling of 20512102600 in words is "twenty billion, five hundred twelve million, one hundred two thousand, six hundred".