66352135 has 4 divisors (see below), whose sum is σ = 79622568. Its totient is φ = 53081704.

The previous prime is 66352073. The next prime is 66352141. The reversal of 66352135 is 53125366.

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 66352135 - 2²⁵ = 32797703 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66352097 and 66352106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6635209 + ... + 6635218.

It is an arithmetic number, because the mean of its divisors is an integer number (19905642).

Almost surely, 2^66352135 is an apocalyptic number.

66352135 is a deficient number, since it is larger than the sum of its proper divisors (13270433).

66352135 is a wasteful number, since it uses less digits than its factorization.

66352135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13270432.

The product of its digits is 16200, while the sum is 31.

The square root of 66352135 is about 8145.6819849537. The cubic root of 66352135 is about 404.8414458357.

The spelling of 66352135 in words is "sixty-six million, three hundred fifty-two thousand, one hundred thirty-five".