66335487 has 32 divisors (see below), whose sum is σ = 94202304. Its totient is φ = 41472000.

The previous prime is 66335461. The next prime is 66335501. The reversal of 66335487 is 78453366.

It is not a de Polignac number, because 66335487 - 2⁸ = 66335231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66335447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656737 + ... + 656837.

It is an arithmetic number, because the mean of its divisors is an integer number (2943822).

Almost surely, 2^66335487 is an apocalyptic number.

66335487 is a deficient number, since it is larger than the sum of its proper divisors (27866817).

66335487 is a wasteful number, since it uses less digits than its factorization.

66335487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299.

The product of its digits is 362880, while the sum is 42.

The square root of 66335487 is about 8144.6600297373. The cubic root of 66335487 is about 404.8075842568.

The spelling of 66335487 in words is "sixty-six million, three hundred thirty-five thousand, four hundred eighty-seven".