5645921360 has 20 divisors (see below), whose sum is σ = 13126767348. Its totient is φ = 2258368512.

The previous prime is 5645921317. The next prime is 5645921387. The reversal of 5645921360 is 631295465.

It can be written as a sum of positive squares in 2 ways, for example, as 3164287504 + 2481633856 = 56252^2 + 49816^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35286929 + ... + 35287088.

Almost surely, 2^5645921360 is an apocalyptic number.

It is an amenable number.

5645921360 is an abundant number, since it is smaller than the sum of its proper divisors (7480845988).

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

5645921360 is a wasteful number, since it uses less digits than its factorization.

5645921360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70574030 (or 70574024 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 5645921360 is about 75139.3462840874. The cubic root of 5645921360 is about 1780.6488145225.

The spelling of 5645921360 in words is "five billion, six hundred forty-five million, nine hundred twenty-one thousand, three hundred sixty".