166227635376037 has 2 divisors, whose sum is σ = 166227635376038. Its totient is φ = 166227635376036.

The previous prime is 166227635375999. The next prime is 166227635376071. The reversal of 166227635376037 is 730673536722661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135536024296036 + 30691611080001 = 11641994^2 + 5540001^2 .

It is a cyclic number.

It is not a de Polignac number, because 166227635376037 - 2²⁷ = 166227501158309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166227635376037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166227635376097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83113817688018 + 83113817688019.

It is an arithmetic number, because the mean of its divisors is an integer number (83113817688019).

Almost surely, 2^{166227635376037} is an apocalyptic number.

It is an amenable number.

166227635376037 is a deficient number, since it is larger than the sum of its proper divisors (1).

166227635376037 is an equidigital number, since it uses as much as digits as its factorization.

166227635376037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240045120, while the sum is 64.

The spelling of 166227635376037 in words is "one hundred sixty-six trillion, two hundred twenty-seven billion, six hundred thirty-five million, three hundred seventy-six thousand, thirty-seven".