166370461 has 2 divisors, whose sum is σ = 166370462. Its totient is φ = 166370460.

The previous prime is 166370443. The next prime is 166370473. The reversal of 166370461 is 164073661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 73633561 = 9630^2 + 8581^2 .

It is a cyclic number.

It is not a de Polignac number, because 166370461 - 2¹³ = 166362269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166370411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83185230 + 83185231.

It is an arithmetic number, because the mean of its divisors is an integer number (83185231).

Almost surely, 2^166370461 is an apocalyptic number.

It is an amenable number.

166370461 is a deficient number, since it is larger than the sum of its proper divisors (1).

166370461 is an equidigital number, since it uses as much as digits as its factorization.

166370461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 166370461 is about 12898.4673895777. The cubic root of 166370461 is about 549.9949983016.

The spelling of 166370461 in words is "one hundred sixty-six million, three hundred seventy thousand, four hundred sixty-one".