166013383 has 2 divisors, whose sum is σ = 166013384. Its totient is φ = 166013382.

The previous prime is 166013377. The next prime is 166013417. The reversal of 166013383 is 383310661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166013383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166019383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83006691 + 83006692.

It is an arithmetic number, because the mean of its divisors is an integer number (83006692).

Almost surely, 2^166013383 is an apocalyptic number.

166013383 is a deficient number, since it is larger than the sum of its proper divisors (1).

166013383 is an equidigital number, since it uses as much as digits as its factorization.

166013383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 166013383 is about 12884.6180773820. The cubic root of 166013383 is about 549.6012349212.

The spelling of 166013383 in words is "one hundred sixty-six million, thirteen thousand, three hundred eighty-three".