20013355138607 has 2 divisors, whose sum is σ = 20013355138608. Its totient is φ = 20013355138606.

The previous prime is 20013355138597. The next prime is 20013355138663. The reversal of 20013355138607 is 70683155331002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20013355138607 - 2¹⁰ = 20013355137583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20013355138307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006677569303 + 10006677569304.

It is an arithmetic number, because the mean of its divisors is an integer number (10006677569304).

Almost surely, 2^{20013355138607} is an apocalyptic number.

20013355138607 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013355138607 is an equidigital number, since it uses as much as digits as its factorization.

20013355138607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 20013355138607 in words is "twenty trillion, thirteen billion, three hundred fifty-five million, one hundred thirty-eight thousand, six hundred seven".