667532351 has 2 divisors, whose sum is σ = 667532352. Its totient is φ = 667532350.

The previous prime is 667532347. The next prime is 667532389. The reversal of 667532351 is 153235766.

It is an a-pointer prime, because the next prime (667532389) can be obtained adding 667532351 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667532351 - 2² = 667532347 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667532311) 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, 333766175 + 333766176.

It is an arithmetic number, because the mean of its divisors is an integer number (333766176).

Almost surely, 2^667532351 is an apocalyptic number.

667532351 is the 11555-th centered decagonal number.

667532351 is a deficient number, since it is larger than the sum of its proper divisors (1).

667532351 is an equidigital number, since it uses as much as digits as its factorization.

667532351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 38.

The square root of 667532351 is about 25836.6474411832. The cubic root of 667532351 is about 873.9584236480.

The spelling of 667532351 in words is "six hundred sixty-seven million, five hundred thirty-two thousand, three hundred fifty-one".