6471220132 has 24 divisors (see below), whose sum is σ = 12212471096. Its totient is φ = 2982624768.

The previous prime is 6471220121. The next prime is 6471220139. The reversal of 6471220132 is 2310221746.

It can be written as a sum of positive squares in 4 ways, for example, as 2755830016 + 3715390116 = 52496^2 + 60954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6471220132.

It is not an unprimeable number, because it can be changed into a prime (6471220139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46773 + ... + 123004.

Almost surely, 2^6471220132 is an apocalyptic number.

It is an amenable number.

6471220132 is a deficient number, since it is larger than the sum of its proper divisors (5741250964).

6471220132 is a wasteful number, since it uses less digits than its factorization.

6471220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170527 (or 170525 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 6471220132 is about 80443.8943115014. The cubic root of 6471220132 is about 1863.4971140123.

Adding to 6471220132 its reverse (2310221746), we get a palindrome (8781441878).

The spelling of 6471220132 in words is "six billion, four hundred seventy-one million, two hundred twenty thousand, one hundred thirty-two".