66265001 has 8 divisors (see below), whose sum is σ = 75432384. Its totient is φ = 57621520.

The previous prime is 66264937. The next prime is 66265007. The reversal of 66265001 is 10056266.

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

It is not a de Polignac number, because 66265001 - 2⁶ = 66264937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66265007) 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, 130706 + ... + 131211.

It is an arithmetic number, because the mean of its divisors is an integer number (9429048).

Almost surely, 2^66265001 is an apocalyptic number.

It is an amenable number.

66265001 is a deficient number, since it is larger than the sum of its proper divisors (9167383).

66265001 is a wasteful number, since it uses less digits than its factorization.

66265001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261951.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66265001 is about 8140.3317499964. The cubic root of 66265001 is about 404.6641548456.

The spelling of 66265001 in words is "sixty-six million, two hundred sixty-five thousand, one".