63166387 has 2 divisors, whose sum is σ = 63166388. Its totient is φ = 63166386.

The previous prime is 63166333. The next prime is 63166399. The reversal of 63166387 is 78366136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63166387 - 2¹⁵ = 63133619 is a prime.

It is not a weakly prime, because it can be changed into another prime (63166687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31583193 + 31583194.

It is an arithmetic number, because the mean of its divisors is an integer number (31583194).

Almost surely, 2^63166387 is an apocalyptic number.

63166387 is a deficient number, since it is larger than the sum of its proper divisors (1).

63166387 is an equidigital number, since it uses as much as digits as its factorization.

63166387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 63166387 is about 7947.7284176046. The cubic root of 63166387 is about 398.2557109456.

The spelling of 63166387 in words is "sixty-three million, one hundred sixty-six thousand, three hundred eighty-seven".