66002769 has 40 divisors (see below), whose sum is σ = 114649920. Its totient is φ = 37057824.

The previous prime is 66002767. The next prime is 66002771. The reversal of 66002769 is 96720066.

It is an interprime number because it is at equal distance from previous prime (66002767) and next prime (66002771).

It is not a de Polignac number, because 66002769 - 2¹ = 66002767 is a prime.

It is a super-2 number, since 2×66002769² = 8712731031334722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66002767) 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 39 ways as a sum of consecutive naturals, for example, 32467 + ... + 34439.

It is an arithmetic number, because the mean of its divisors is an integer number (2866248).

Almost surely, 2^66002769 is an apocalyptic number.

It is an amenable number.

66002769 is a deficient number, since it is larger than the sum of its proper divisors (48647151).

66002769 is a wasteful number, since it uses less digits than its factorization.

66002769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 66002769 is about 8124.2088230178. The cubic root of 66002769 is about 404.1296535961.

The spelling of 66002769 in words is "sixty-six million, two thousand, seven hundred sixty-nine".