66119077 has 4 divisors (see below), whose sum is σ = 66601836. Its totient is φ = 65636320.

The previous prime is 66119071. The next prime is 66119113. The reversal of 66119077 is 77091166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77091166 = 2 ⋅38545583.

It can be written as a sum of positive squares in 2 ways, for example, as 29746116 + 36372961 = 5454^2 + 6031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66119077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66119071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241174 + ... + 241447.

It is an arithmetic number, because the mean of its divisors is an integer number (16650459).

Almost surely, 2^66119077 is an apocalyptic number.

It is an amenable number.

66119077 is a deficient number, since it is larger than the sum of its proper divisors (482759).

66119077 is a wasteful number, since it uses less digits than its factorization.

66119077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482758.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 66119077 is about 8131.3637847535. The cubic root of 66119077 is about 404.3668958113.

The spelling of 66119077 in words is "sixty-six million, one hundred nineteen thousand, seventy-seven".