10666487057 has 2 divisors, whose sum is σ = 10666487058. Its totient is φ = 10666487056.

The previous prime is 10666487009. The next prime is 10666487113. The reversal of 10666487057 is 75078466601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6742216321 + 3924270736 = 82111^2 + 62644^2 .

It is a cyclic number.

It is not a de Polignac number, because 10666487057 - 2¹⁴ = 10666470673 is a prime.

It is a super-2 number, since 2×10666487057² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10666486996 and 10666487014.

It is not a weakly prime, because it can be changed into another prime (10666487257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333243528 + 5333243529.

It is an arithmetic number, because the mean of its divisors is an integer number (5333243529).

Almost surely, 2^10666487057 is an apocalyptic number.

It is an amenable number.

10666487057 is a deficient number, since it is larger than the sum of its proper divisors (1).

10666487057 is an equidigital number, since it uses as much as digits as its factorization.

10666487057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 10666487057 in words is "ten billion, six hundred sixty-six million, four hundred eighty-seven thousand, fifty-seven".