20136007610507 has 4 divisors (see below), whose sum is σ = 20785556243136. Its totient is φ = 19486458977880.

The previous prime is 20136007610479. The next prime is 20136007610557. The reversal of 20136007610507 is 70501670063102.

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

It is a cyclic number.

It is not a de Polignac number, because 20136007610507 - 2²⁶ = 20135940501643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20136007610557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324774316268 + ... + 324774316329.

It is an arithmetic number, because the mean of its divisors is an integer number (5196389060784).

Almost surely, 2^{20136007610507} is an apocalyptic number.

20136007610507 is a deficient number, since it is larger than the sum of its proper divisors (649548632629).

20136007610507 is an equidigital number, since it uses as much as digits as its factorization.

20136007610507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649548632628.

The product of its (nonzero) digits is 52920, while the sum is 38.

Adding to 20136007610507 its reverse (70501670063102), we get a palindrome (90637677673609).

The spelling of 20136007610507 in words is "twenty trillion, one hundred thirty-six billion, seven million, six hundred ten thousand, five hundred seven".