66010667 has 8 divisors (see below), whose sum is σ = 69050880. Its totient is φ = 62984680.

The previous prime is 66010657. The next prime is 66010669. The reversal of 66010667 is 76601066.

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 66010667 - 2⁶ = 66010603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66010669) 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, 6584 + ... + 13242.

It is an arithmetic number, because the mean of its divisors is an integer number (8631360).

Almost surely, 2^66010667 is an apocalyptic number.

66010667 is a deficient number, since it is larger than the sum of its proper divisors (3040213).

66010667 is a wasteful number, since it uses less digits than its factorization.

66010667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7113.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 66010667 is about 8124.6948865788. The cubic root of 66010667 is about 404.1457725598.

The spelling of 66010667 in words is "sixty-six million, ten thousand, six hundred sixty-seven".