1522164173993 has 2 divisors, whose sum is σ = 1522164173994. Its totient is φ = 1522164173992.

The previous prime is 1522164173921. The next prime is 1522164174001. The reversal of 1522164173993 is 3993714612251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1521097955584 + 1066218409 = 1233328^2 + 32653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1522164173993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1522164172993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761082086996 + 761082086997.

It is an arithmetic number, because the mean of its divisors is an integer number (761082086997).

Almost surely, 2^{1522164173993} is an apocalyptic number.

It is an amenable number.

1522164173993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522164173993 is an equidigital number, since it uses as much as digits as its factorization.

1522164173993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 53.

The spelling of 1522164173993 in words is "one trillion, five hundred twenty-two billion, one hundred sixty-four million, one hundred seventy-three thousand, nine hundred ninety-three".