66959051 has 2 divisors, whose sum is σ = 66959052. Its totient is φ = 66959050.

The previous prime is 66959033. The next prime is 66959069. The reversal of 66959051 is 15095966.

It is a balanced prime because it is at equal distance from previous prime (66959033) and next prime (66959069).

It is a cyclic number.

It is not a de Polignac number, because 66959051 - 2¹⁸ = 66696907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66959251) 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, 33479525 + 33479526.

It is an arithmetic number, because the mean of its divisors is an integer number (33479526).

Almost surely, 2^66959051 is an apocalyptic number.

66959051 is a deficient number, since it is larger than the sum of its proper divisors (1).

66959051 is an equidigital number, since it uses as much as digits as its factorization.

66959051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 66959051 is about 8182.8510312727. The cubic root of 66959051 is about 406.0720487373.

The spelling of 66959051 in words is "sixty-six million, nine hundred fifty-nine thousand, fifty-one".