66495667 has 8 divisors (see below), whose sum is σ = 76733696. Its totient is φ = 56442312.

The previous prime is 66495631. The next prime is 66495677. The reversal of 66495667 is 76659466.

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-66495667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66495667.

It is not an unprimeable number, because it can be changed into a prime (66495677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45393 + ... + 46834.

It is an arithmetic number, because the mean of its divisors is an integer number (9591712).

Almost surely, 2^66495667 is an apocalyptic number.

66495667 is a deficient number, since it is larger than the sum of its proper divisors (10238029).

66495667 is a wasteful number, since it uses less digits than its factorization.

66495667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92337.

The product of its digits is 1632960, while the sum is 49.

The square root of 66495667 is about 8154.4875375464. The cubic root of 66495667 is about 405.1331513622.

The spelling of 66495667 in words is "sixty-six million, four hundred ninety-five thousand, six hundred sixty-seven".