66876701 has 2 divisors, whose sum is σ = 66876702. Its totient is φ = 66876700.

The previous prime is 66876673. The next prime is 66876707. The reversal of 66876701 is 10767866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65772100 + 1104601 = 8110^2 + 1051^2 .

It is a cyclic number.

It is not a de Polignac number, because 66876701 - 2¹⁴ = 66860317 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 (66876707) 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, 33438350 + 33438351.

It is an arithmetic number, because the mean of its divisors is an integer number (33438351).

Almost surely, 2^66876701 is an apocalyptic number.

It is an amenable number.

66876701 is a deficient number, since it is larger than the sum of its proper divisors (1).

66876701 is an equidigital number, since it uses as much as digits as its factorization.

66876701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 66876701 is about 8177.8176184114. The cubic root of 66876701 is about 405.9055103784.

The spelling of 66876701 in words is "sixty-six million, eight hundred seventy-six thousand, seven hundred one".