1966428151 has 2 divisors, whose sum is σ = 1966428152. Its totient is φ = 1966428150.

The previous prime is 1966428137. The next prime is 1966428157. The reversal of 1966428151 is 1518246691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1966428151 - 2¹¹ = 1966426103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1966428098 and 1966428107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966428157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983214075 + 983214076.

It is an arithmetic number, because the mean of its divisors is an integer number (983214076).

Almost surely, 2^1966428151 is an apocalyptic number.

1966428151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966428151 is an equidigital number, since it uses as much as digits as its factorization.

1966428151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 43.

The square root of 1966428151 is about 44344.4263803243. The cubic root of 1966428151 is about 1252.8315863981.

The spelling of 1966428151 in words is "one billion, nine hundred sixty-six million, four hundred twenty-eight thousand, one hundred fifty-one".