511666001 has 8 divisors (see below), whose sum is σ = 637921344. Its totient is φ = 398700720.

The previous prime is 511665989. The next prime is 511666003. The reversal of 511666001 is 100666115.

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

It is not a de Polignac number, because 511666001 - 2²² = 507471697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511666003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3322430 + ... + 3322583.

It is an arithmetic number, because the mean of its divisors is an integer number (79740168).

Almost surely, 2^511666001 is an apocalyptic number.

It is an amenable number.

511666001 is a deficient number, since it is larger than the sum of its proper divisors (126255343).

511666001 is a wasteful number, since it uses less digits than its factorization.

511666001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6645031.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 511666001 is about 22620.0353890086. The cubic root of 511666001 is about 799.8260043471.

It can be divided in two parts, 5116 and 66001, that added together give a palindrome (71117).

The spelling of 511666001 in words is "five hundred eleven million, six hundred sixty-six thousand, one".