6645363160 has 32 divisors (see below), whose sum is σ = 14976754560. Its totient is φ = 2653756416.

The previous prime is 6645363103. The next prime is 6645363163. The reversal of 6645363160 is 613635466.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6645363163) 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 7 ways as a sum of consecutive naturals, for example, 112569 + ... + 161128.

It is an arithmetic number, because the mean of its divisors is an integer number (468023580).

Almost surely, 2^6645363160 is an apocalyptic number.

It is an amenable number.

6645363160 is an abundant number, since it is smaller than the sum of its proper divisors (8331391400).

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

6645363160 is a wasteful number, since it uses less digits than its factorization.

6645363160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274315 (or 274311 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 6645363160 is about 81519.0969037317. The cubic root of 6645363160 is about 1880.0651818354.

The spelling of 6645363160 in words is "six billion, six hundred forty-five million, three hundred sixty-three thousand, one hundred sixty".