20116707201587 has 2 divisors, whose sum is σ = 20116707201588. Its totient is φ = 20116707201586.

The previous prime is 20116707201523. The next prime is 20116707201593. The reversal of 20116707201587 is 78510270761102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20116707201587 - 2⁶ = 20116707201523 is a prime.

It is not a weakly prime, because it can be changed into another prime (20116707201187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058353600793 + 10058353600794.

It is an arithmetic number, because the mean of its divisors is an integer number (10058353600794).

Almost surely, 2^{20116707201587} is an apocalyptic number.

20116707201587 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116707201587 is an equidigital number, since it uses as much as digits as its factorization.

20116707201587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 47.

Adding to 20116707201587 its reverse (78510270761102), we get a palindrome (98626977962689).

The spelling of 20116707201587 in words is "twenty trillion, one hundred sixteen billion, seven hundred seven million, two hundred one thousand, five hundred eighty-seven".