66345435 has 96 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 30046464.

The previous prime is 66345427. The next prime is 66345437. The reversal of 66345435 is 53454366.

It is not a de Polignac number, because 66345435 - 2³ = 66345427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66345435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66345437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 522342 + ... + 522468.

It is an arithmetic number, because the mean of its divisors is an integer number (1397760).

Almost surely, 2^66345435 is an apocalyptic number.

66345435 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66345435 is an abundant number, since it is smaller than the sum of its proper divisors (67839525).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66345435 is a wasteful number, since it uses less digits than its factorization.

66345435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 66345435 is about 8145.2707137332. The cubic root of 66345435 is about 404.8278188992.

The spelling of 66345435 in words is "sixty-six million, three hundred forty-five thousand, four hundred thirty-five".