20127237163337 has 4 divisors (see below), whose sum is σ = 20262319292100. Its totient is φ = 19992155034576.

The previous prime is 20127237163331. The next prime is 20127237163373. The reversal of 20127237163337 is 73336173272102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11694375447616 + 8432861715721 = 3419704^2 + 2903939^2 .

It is a cyclic number.

It is not a de Polignac number, because 20127237163337 - 2⁴ = 20127237163321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20127237163291 and 20127237163300.

It is not an unprimeable number, because it can be changed into a prime (20127237163331) 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, 67541064158 + ... + 67541064455.

It is an arithmetic number, because the mean of its divisors is an integer number (5065579823025).

Almost surely, 2^{20127237163337} is an apocalyptic number.

It is an amenable number.

20127237163337 is a deficient number, since it is larger than the sum of its proper divisors (135082128763).

20127237163337 is a wasteful number, since it uses less digits than its factorization.

20127237163337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135082128762.

The product of its (nonzero) digits is 1333584, while the sum is 47.

The spelling of 20127237163337 in words is "twenty trillion, one hundred twenty-seven billion, two hundred thirty-seven million, one hundred sixty-three thousand, three hundred thirty-seven".