166724711051 has 2 divisors, whose sum is σ = 166724711052. Its totient is φ = 166724711050.

The previous prime is 166724711011. The next prime is 166724711071. The reversal of 166724711051 is 150117427661.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (150117427661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166724711051 - 2²⁶ = 166657602187 is a prime.

It is not a weakly prime, because it can be changed into another prime (166724711011) 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, 83362355525 + 83362355526.

It is an arithmetic number, because the mean of its divisors is an integer number (83362355526).

Almost surely, 2^166724711051 is an apocalyptic number.

166724711051 is a deficient number, since it is larger than the sum of its proper divisors (1).

166724711051 is an equidigital number, since it uses as much as digits as its factorization.

166724711051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 166724711051 in words is "one hundred sixty-six billion, seven hundred twenty-four million, seven hundred eleven thousand, fifty-one".