3125664665293 has 2 divisors, whose sum is σ = 3125664665294. Its totient is φ = 3125664665292.

The previous prime is 3125664665231. The next prime is 3125664665297. The reversal of 3125664665293 is 3925664665213.

3125664665293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2561065710889 + 564598954404 = 1600333^2 + 751398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3125664665293 is a prime.

It is a super-2 number, since 2×3125664665293² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3125664665297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562832332646 + 1562832332647.

It is an arithmetic number, because the mean of its divisors is an integer number (1562832332647).

Almost surely, 2^{3125664665293} is an apocalyptic number.

It is an amenable number.

3125664665293 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125664665293 is an equidigital number, since it uses as much as digits as its factorization.

3125664665293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41990400, while the sum is 58.

The spelling of 3125664665293 in words is "three trillion, one hundred twenty-five billion, six hundred sixty-four million, six hundred sixty-five thousand, two hundred ninety-three".