66064535 has 4 divisors (see below), whose sum is σ = 79277448. Its totient is φ = 52851624.

The previous prime is 66064529. The next prime is 66064547. The reversal of 66064535 is 53546066.

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 66064535 - 2⁴ = 66064519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66064495 and 66064504.

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, 6606449 + ... + 6606458.

It is an arithmetic number, because the mean of its divisors is an integer number (19819362).

Almost surely, 2^66064535 is an apocalyptic number.

66064535 is a deficient number, since it is larger than the sum of its proper divisors (13212913).

66064535 is a wasteful number, since it uses less digits than its factorization.

66064535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212912.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 66064535 is about 8128.0092888726. The cubic root of 66064535 is about 404.2556770454.

The spelling of 66064535 in words is "sixty-six million, sixty-four thousand, five hundred thirty-five".