646111006 has 8 divisors (see below), whose sum is σ = 985593240. Its totient is φ = 317579928.

The previous prime is 646111003. The next prime is 646111013. The reversal of 646111006 is 600111646.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646111003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2737641 + ... + 2737876.

It is an arithmetic number, because the mean of its divisors is an integer number (123199155).

Almost surely, 2^646111006 is an apocalyptic number.

646111006 is a deficient number, since it is larger than the sum of its proper divisors (339482234).

646111006 is a wasteful number, since it uses less digits than its factorization.

646111006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475578.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 646111006 is about 25418.7136968022. The cubic root of 646111006 is about 864.5080593469.

The spelling of 646111006 in words is "six hundred forty-six million, one hundred eleven thousand, six".