66077061 has 16 divisors (see below), whose sum is σ = 90370944. Its totient is φ = 42928704.

The previous prime is 66077059. The next prime is 66077069. The reversal of 66077061 is 16077066.

It is not a de Polignac number, because 66077061 - 2¹ = 66077059 is a prime.

It is a super-3 number, since 3×66077061³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66077069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23640 + ... + 26286.

It is an arithmetic number, because the mean of its divisors is an integer number (5648184).

Almost surely, 2^66077061 is an apocalyptic number.

It is an amenable number.

66077061 is a deficient number, since it is larger than the sum of its proper divisors (24293883).

66077061 is a wasteful number, since it uses less digits than its factorization.

66077061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 66077061 is about 8128.7797977310. The cubic root of 66077061 is about 404.2812247245.

The spelling of 66077061 in words is "sixty-six million, seventy-seven thousand, sixty-one".