10100066566669 has 2 divisors, whose sum is σ = 10100066566670. Its totient is φ = 10100066566668.

The previous prime is 10100066566661. The next prime is 10100066566687. The reversal of 10100066566669 is 96666566000101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8563612113225 + 1536454453444 = 2926365^2 + 1239538^2 .

It is a cyclic number.

It is not a de Polignac number, because 10100066566669 - 2³ = 10100066566661 is a prime.

It is a super-2 number, since 2×10100066566669² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10100066566661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050033283334 + 5050033283335.

It is an arithmetic number, because the mean of its divisors is an integer number (5050033283335).

Almost surely, 2^{10100066566669} is an apocalyptic number.

It is an amenable number.

10100066566669 is a deficient number, since it is larger than the sum of its proper divisors (1).

10100066566669 is an equidigital number, since it uses as much as digits as its factorization.

10100066566669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 10100066566669 in words is "ten trillion, one hundred billion, sixty-six million, five hundred sixty-six thousand, six hundred sixty-nine".