20135566605300 has 36 divisors (see below), whose sum is σ = 58258906045536. Its totient is φ = 5369484428000.

The previous prime is 20135566605277. The next prime is 20135566605337. The reversal of 20135566605300 is 350666553102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33559277376 + ... + 33559277975.

Almost surely, 2^{20135566605300} is an apocalyptic number.

20135566605300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20135566605300 is an abundant number, since it is smaller than the sum of its proper divisors (38123339440236).

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

20135566605300 is a wasteful number, since it uses less digits than its factorization.

20135566605300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67118555368 (or 67118555361 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 20135566605300 in words is "twenty trillion, one hundred thirty-five billion, five hundred sixty-six million, six hundred five thousand, three hundred".