66077135 has 4 divisors (see below), whose sum is σ = 79292568. Its totient is φ = 52861704.

The previous prime is 66077131. The next prime is 66077161. The reversal of 66077135 is 53177066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66077135 - 2² = 66077131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66077095 and 66077104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66077131) 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, 6607709 + ... + 6607718.

It is an arithmetic number, because the mean of its divisors is an integer number (19823142).

Almost surely, 2^66077135 is an apocalyptic number.

66077135 is a deficient number, since it is larger than the sum of its proper divisors (13215433).

66077135 is a wasteful number, since it uses less digits than its factorization.

66077135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13215432.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 66077135 is about 8128.7843494584. The cubic root of 66077135 is about 404.2813756432.

The spelling of 66077135 in words is "sixty-six million, seventy-seven thousand, one hundred thirty-five".