166336403 has 2 divisors, whose sum is σ = 166336404. Its totient is φ = 166336402.

The previous prime is 166336397. The next prime is 166336409. The reversal of 166336403 is 304633661.

It is a balanced prime because it is at equal distance from previous prime (166336397) and next prime (166336409).

It is a cyclic number.

It is not a de Polignac number, because 166336403 - 2¹⁴ = 166320019 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166336403.

It is not a weakly prime, because it can be changed into another prime (166336409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83168201 + 83168202.

It is an arithmetic number, because the mean of its divisors is an integer number (83168202).

Almost surely, 2^166336403 is an apocalyptic number.

166336403 is a deficient number, since it is larger than the sum of its proper divisors (1).

166336403 is an equidigital number, since it uses as much as digits as its factorization.

166336403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 166336403 is about 12897.1470876314. The cubic root of 166336403 is about 549.9574655812.

The spelling of 166336403 in words is "one hundred sixty-six million, three hundred thirty-six thousand, four hundred three".