66276601 has 8 divisors (see below), whose sum is σ = 67804160. Its totient is φ = 64765008.

The previous prime is 66276599. The next prime is 66276649. The reversal of 66276601 is 10667266.

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 66276601 - 2¹ = 66276599 is a prime.

It is a super-2 number, since 2×66276601² = 8785175680226402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66276671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4615 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (8475520).

Almost surely, 2^66276601 is an apocalyptic number.

It is an amenable number.

66276601 is a deficient number, since it is larger than the sum of its proper divisors (1527559).

66276601 is a wasteful number, since it uses less digits than its factorization.

66276601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66276601 is about 8141.0442204916. The cubic root of 66276601 is about 404.6877662555.

The spelling of 66276601 in words is "sixty-six million, two hundred seventy-six thousand, six hundred one".