20136625571206 has 4 divisors (see below), whose sum is σ = 30204938356812. Its totient is φ = 10068312785602.

The previous prime is 20136625571201. The next prime is 20136625571207. The reversal of 20136625571206 is 60217552663102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136625571201) 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 as a sum of consecutive naturals, namely, 5034156392800 + ... + 5034156392803.

It is an arithmetic number, because the mean of its divisors is an integer number (7551234589203).

Almost surely, 2^{20136625571206} is an apocalyptic number.

20136625571206 is a deficient number, since it is larger than the sum of its proper divisors (10068312785606).

20136625571206 is a wasteful number, since it uses less digits than its factorization.

20136625571206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068312785605.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 20136625571206 in words is "twenty trillion, one hundred thirty-six billion, six hundred twenty-five million, five hundred seventy-one thousand, two hundred six".