20136500354145 has 16 divisors (see below), whose sum is σ = 36821029219200. Its totient is φ = 9205257304704.

The previous prime is 20136500354141. The next prime is 20136500354183. The reversal of 20136500354145 is 54145300563102.

It is a happy number.

It is not a de Polignac number, because 20136500354145 - 2² = 20136500354141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20136500354141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95888096820 + ... + 95888097029.

It is an arithmetic number, because the mean of its divisors is an integer number (2301314326200).

Almost surely, 2^{20136500354145} is an apocalyptic number.

It is an amenable number.

20136500354145 is a deficient number, since it is larger than the sum of its proper divisors (16684528865055).

20136500354145 is a wasteful number, since it uses less digits than its factorization.

20136500354145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191776193864.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 20136500354145 in words is "twenty trillion, one hundred thirty-six billion, five hundred million, three hundred fifty-four thousand, one hundred forty-five".