66575067 has 16 divisors (see below), whose sum is σ = 96945408. Its totient is φ = 40390560.

The previous prime is 66575063. The next prime is 66575081. The reversal of 66575067 is 76057566.

It is not a de Polignac number, because 66575067 - 2² = 66575063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66575063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9253 + ... + 14790.

It is an arithmetic number, because the mean of its divisors is an integer number (6059088).

Almost surely, 2^66575067 is an apocalyptic number.

66575067 is a deficient number, since it is larger than the sum of its proper divisors (30370341).

66575067 is a wasteful number, since it uses less digits than its factorization.

66575067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24130.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 66575067 is about 8159.3545700625. The cubic root of 66575067 is about 405.2943386936.

The spelling of 66575067 in words is "sixty-six million, five hundred seventy-five thousand, sixty-seven".