20624516911 has 2 divisors, whose sum is σ = 20624516912. Its totient is φ = 20624516910.

The previous prime is 20624516881. The next prime is 20624516951. The reversal of 20624516911 is 11961542602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20624516911 - 2⁵ = 20624516879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20624516951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10312258455 + 10312258456.

It is an arithmetic number, because the mean of its divisors is an integer number (10312258456).

Almost surely, 2^20624516911 is an apocalyptic number.

20624516911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20624516911 is an equidigital number, since it uses as much as digits as its factorization.

20624516911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 20624516911 in words is "twenty billion, six hundred twenty-four million, five hundred sixteen thousand, nine hundred eleven".