1016664740633 has 2 divisors, whose sum is σ = 1016664740634. Its totient is φ = 1016664740632.

The previous prime is 1016664740591. The next prime is 1016664740671. The reversal of 1016664740633 is 3360474666101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629297918089 + 387366822544 = 793283^2 + 622388^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016664740633 - 2¹² = 1016664736537 is a prime.

It is a super-2 number, since 2×1016664740633² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1016664740933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508332370316 + 508332370317.

It is an arithmetic number, because the mean of its divisors is an integer number (508332370317).

Almost surely, 2^{1016664740633} is an apocalyptic number.

It is an amenable number.

1016664740633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016664740633 is an equidigital number, since it uses as much as digits as its factorization.

1016664740633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 1016664740633 in words is "one trillion, sixteen billion, six hundred sixty-four million, seven hundred forty thousand, six hundred thirty-three".