6465671020 has 24 divisors (see below), whose sum is σ = 13608856800. Its totient is φ = 2580373632.

The previous prime is 6465670999. The next prime is 6465671053. The reversal of 6465671020 is 201765646.

It is a happy 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, 359425 + ... + 376984.

It is an arithmetic number, because the mean of its divisors is an integer number (567035700).

Almost surely, 2^6465671020 is an apocalyptic number.

It is an amenable number.

6465671020 is an abundant number, since it is smaller than the sum of its proper divisors (7143185780).

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

6465671020 is a wasteful number, since it uses less digits than its factorization.

6465671020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736857 (or 736855 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 6465671020 is about 80409.3963414724. The cubic root of 6465671020 is about 1862.9643081865.

The spelling of 6465671020 in words is "six billion, four hundred sixty-five million, six hundred seventy-one thousand, twenty".