66354607 has 8 divisors (see below), whose sum is σ = 72514512. Its totient is φ = 60216000.

The previous prime is 66354583. The next prime is 66354619. The reversal of 66354607 is 70645366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66354607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66354667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593 + ... + 11629.

It is an arithmetic number, because the mean of its divisors is an integer number (9064314).

Almost surely, 2^66354607 is an apocalyptic number.

66354607 is a deficient number, since it is larger than the sum of its proper divisors (6159905).

66354607 is a wasteful number, since it uses less digits than its factorization.

66354607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 66354607 is about 8145.8337203751. The cubic root of 66354607 is about 404.8464733334.

The spelling of 66354607 in words is "sixty-six million, three hundred fifty-four thousand, six hundred seven".