646501106 has 8 divisors (see below), whose sum is σ = 1020791280. Its totient is φ = 306237348.

The previous prime is 646501081. The next prime is 646501117. The reversal of 646501106 is 601105646.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8506556 + ... + 8506631.

It is an arithmetic number, because the mean of its divisors is an integer number (127598910).

Almost surely, 2^646501106 is an apocalyptic number.

646501106 is a deficient number, since it is larger than the sum of its proper divisors (374290174).

646501106 is a wasteful number, since it uses less digits than its factorization.

646501106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17013208.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 646501106 is about 25426.3860192517. The cubic root of 646501106 is about 864.6820112640.

It can be divided in two parts, 64650 and 1106, that added together give a palindrome (65756).

The spelling of 646501106 in words is "six hundred forty-six million, five hundred one thousand, one hundred six".