20607777011 has 2 divisors, whose sum is σ = 20607777012. Its totient is φ = 20607777010.

The previous prime is 20607776999. The next prime is 20607777053. The reversal of 20607777011 is 11077770602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20607777011 - 2³⁰ = 19534035187 is a prime.

It is not a weakly prime, because it can be changed into another prime (20607707011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10303888505 + 10303888506.

It is an arithmetic number, because the mean of its divisors is an integer number (10303888506).

Almost surely, 2^20607777011 is an apocalyptic number.

20607777011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20607777011 is an equidigital number, since it uses as much as digits as its factorization.

20607777011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28812, while the sum is 38.

The spelling of 20607777011 in words is "twenty billion, six hundred seven million, seven hundred seventy-seven thousand, eleven".