11066720477 has 2 divisors, whose sum is σ = 11066720478. Its totient is φ = 11066720476.

The previous prime is 11066720443. The next prime is 11066720543. The reversal of 11066720477 is 77402766011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11065777636 + 942841 = 105194^2 + 971^2 .

It is a cyclic number.

It is not a de Polignac number, because 11066720477 - 2¹⁰ = 11066719453 is a prime.

It is a super-2 number, since 2×11066720477² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11066720407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533360238 + 5533360239.

It is an arithmetic number, because the mean of its divisors is an integer number (5533360239).

Almost surely, 2^11066720477 is an apocalyptic number.

It is an amenable number.

11066720477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11066720477 is an equidigital number, since it uses as much as digits as its factorization.

11066720477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 11066720477 in words is "eleven billion, sixty-six million, seven hundred twenty thousand, four hundred seventy-seven".