166126254330353 has 4 divisors (see below), whose sum is σ = 166126286717040. Its totient is φ = 166126221943668.

The previous prime is 166126254330347. The next prime is 166126254330367. The reversal of 166126254330353 is 353033452621661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166126254330353 - 2¹⁸ = 166126254068209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166126254330343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6607775 + ... + 19388532.

It is an arithmetic number, because the mean of its divisors is an integer number (41531571679260).

Almost surely, 2^{166126254330353} is an apocalyptic number.

It is an amenable number.

166126254330353 is a deficient number, since it is larger than the sum of its proper divisors (32386687).

166126254330353 is an equidigital number, since it uses as much as digits as its factorization.

166126254330353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32386686.

The product of its (nonzero) digits is 6998400, while the sum is 50.

The spelling of 166126254330353 in words is "one hundred sixty-six trillion, one hundred twenty-six billion, two hundred fifty-four million, three hundred thirty thousand, three hundred fifty-three".