662405951 has 2 divisors, whose sum is σ = 662405952. Its totient is φ = 662405950.

The previous prime is 662405941. The next prime is 662405959. The reversal of 662405951 is 159504266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662405951 - 2¹⁰ = 662404927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662405959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331202975 + 331202976.

It is an arithmetic number, because the mean of its divisors is an integer number (331202976).

Almost surely, 2^662405951 is an apocalyptic number.

662405951 is a deficient number, since it is larger than the sum of its proper divisors (1).

662405951 is an equidigital number, since it uses as much as digits as its factorization.

662405951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 662405951 is about 25737.2483183420. The cubic root of 662405951 is about 871.7154469340.

The spelling of 662405951 in words is "six hundred sixty-two million, four hundred five thousand, nine hundred fifty-one".