66970127 has 16 divisors (see below), whose sum is σ = 78570240. Its totient is φ = 55899072.

The previous prime is 66970109. The next prime is 66970129. The reversal of 66970127 is 72107966.

It is a cyclic number.

It is not a de Polignac number, because 66970127 - 2⁸ = 66969871 is a prime.

It is a super-2 number, since 2×66970127² = 8969995820792258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66970129) 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 in 15 ways as a sum of consecutive naturals, for example, 41624 + ... + 43202.

It is an arithmetic number, because the mean of its divisors is an integer number (4910640).

Almost surely, 2^66970127 is an apocalyptic number.

66970127 is a deficient number, since it is larger than the sum of its proper divisors (11600113).

66970127 is a wasteful number, since it uses less digits than its factorization.

66970127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 66970127 is about 8183.5277845193. The cubic root of 66970127 is about 406.0944375753.

The spelling of 66970127 in words is "sixty-six million, nine hundred seventy thousand, one hundred twenty-seven".