172966055542453 has 2 divisors, whose sum is σ = 172966055542454. Its totient is φ = 172966055542452.

The previous prime is 172966055542277. The next prime is 172966055542457. The reversal of 172966055542453 is 354245550669271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154462964025969 + 18503091516484 = 12428313^2 + 4301522^2 .

It is a cyclic number.

It is not a de Polignac number, because 172966055542453 - 2³⁷ = 172828616588981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172966055542457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86483027771226 + 86483027771227.

It is an arithmetic number, because the mean of its divisors is an integer number (86483027771227).

Almost surely, 2^{172966055542453} is an apocalyptic number.

It is an amenable number.

172966055542453 is a deficient number, since it is larger than the sum of its proper divisors (1).

172966055542453 is an equidigital number, since it uses as much as digits as its factorization.

172966055542453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160000, while the sum is 64.

The spelling of 172966055542453 in words is "one hundred seventy-two trillion, nine hundred sixty-six billion, fifty-five million, five hundred forty-two thousand, four hundred fifty-three".