172662203453 has 2 divisors, whose sum is σ = 172662203454. Its totient is φ = 172662203452.

The previous prime is 172662203437. The next prime is 172662203573. The reversal of 172662203453 is 354302266271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117743687044 + 54918516409 = 343138^2 + 234347^2 .

It is an emirp because it is prime and its reverse (354302266271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172662203453 - 2⁴ = 172662203437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172662203453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172662703453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86331101726 + 86331101727.

It is an arithmetic number, because the mean of its divisors is an integer number (86331101727).

Almost surely, 2^172662203453 is an apocalyptic number.

It is an amenable number.

172662203453 is a deficient number, since it is larger than the sum of its proper divisors (1).

172662203453 is an equidigital number, since it uses as much as digits as its factorization.

172662203453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 172662203453 in words is "one hundred seventy-two billion, six hundred sixty-two million, two hundred three thousand, four hundred fifty-three".