6495162840 has 48 divisors (see below), whose sum is σ = 21109280400. Its totient is φ = 1732043328.

The previous prime is 6495162833. The next prime is 6495162841. The reversal of 6495162840 is 482615946.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6495162841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9020700 + ... + 9021419.

It is an arithmetic number, because the mean of its divisors is an integer number (439776675).

Almost surely, 2^6495162840 is an apocalyptic number.

6495162840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6495162840 is an abundant number, since it is smaller than the sum of its proper divisors (14614117560).

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

6495162840 is a wasteful number, since it uses less digits than its factorization.

6495162840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18042136 (or 18042129 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 6495162840 is about 80592.5731069557. The cubic root of 6495162840 is about 1865.7925211221.

The spelling of 6495162840 in words is "six billion, four hundred ninety-five million, one hundred sixty-two thousand, eight hundred forty".