66467645 has 8 divisors (see below), whose sum is σ = 80722656. Its totient is φ = 52533136.

The previous prime is 66467629. The next prime is 66467657. The reversal of 66467645 is 54676466.

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

It is a cyclic number.

It is not a de Polignac number, because 66467645 - 2⁴ = 66467629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66467596 and 66467605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79667 + ... + 80496.

It is an arithmetic number, because the mean of its divisors is an integer number (10090332).

Almost surely, 2^66467645 is an apocalyptic number.

It is an amenable number.

66467645 is a deficient number, since it is larger than the sum of its proper divisors (14255011).

66467645 is a wasteful number, since it uses less digits than its factorization.

66467645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160251.

The product of its digits is 725760, while the sum is 44.

The square root of 66467645 is about 8152.7691614567. The cubic root of 66467645 is about 405.0762341887.

The spelling of 66467645 in words is "sixty-six million, four hundred sixty-seven thousand, six hundred forty-five".