6651640182 has 16 divisors (see below), whose sum is σ = 14512669632. Its totient is φ = 2015648520.

The previous prime is 6651640153. The next prime is 6651640199. The reversal of 6651640182 is 2810461566.

It is a happy number.

It is a super-2 number, since 2×6651640182² = 88488634221593986248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6651640182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50391148 + ... + 50391279.

It is an arithmetic number, because the mean of its divisors is an integer number (907041852).

Almost surely, 2^6651640182 is an apocalyptic number.

6651640182 is an abundant number, since it is smaller than the sum of its proper divisors (7861029450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6651640182 is a wasteful number, since it uses less digits than its factorization.

6651640182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100782443.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 6651640182 is about 81557.5881325582. The cubic root of 6651640182 is about 1880.6569476765.

The spelling of 6651640182 in words is "six billion, six hundred fifty-one million, six hundred forty thousand, one hundred eighty-two".