118640566511 has 2 divisors, whose sum is σ = 118640566512. Its totient is φ = 118640566510.

The previous prime is 118640566453. The next prime is 118640566529. The reversal of 118640566511 is 115665046811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118640566511 - 2²² = 118636372207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118640566571) 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, 59320283255 + 59320283256.

It is an arithmetic number, because the mean of its divisors is an integer number (59320283256).

Almost surely, 2^118640566511 is an apocalyptic number.

118640566511 is a deficient number, since it is larger than the sum of its proper divisors (1).

118640566511 is an equidigital number, since it uses as much as digits as its factorization.

118640566511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 118640566511 in words is "one hundred eighteen billion, six hundred forty million, five hundred sixty-six thousand, five hundred eleven".