166606151051 has 2 divisors, whose sum is σ = 166606151052. Its totient is φ = 166606151050.

The previous prime is 166606151011. The next prime is 166606151099. The reversal of 166606151051 is 150151606661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166606151051 - 2⁶ = 166606150987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166606150996 and 166606151014.

It is not a weakly prime, because it can be changed into another prime (166606151011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83303075525 + 83303075526.

It is an arithmetic number, because the mean of its divisors is an integer number (83303075526).

Almost surely, 2^166606151051 is an apocalyptic number.

166606151051 is a deficient number, since it is larger than the sum of its proper divisors (1).

166606151051 is an equidigital number, since it uses as much as digits as its factorization.

166606151051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 166606151051 in words is "one hundred sixty-six billion, six hundred six million, one hundred fifty-one thousand, fifty-one".