2159345560 has 32 divisors (see below), whose sum is σ = 4905707040. Its totient is φ = 855350784.

The previous prime is 2159345537. The next prime is 2159345569. The reversal of 2159345560 is 655439512.

2159345560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (2159345569) 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, 257937 + ... + 266176.

It is an arithmetic number, because the mean of its divisors is an integer number (153303345).

Almost surely, 2^2159345560 is an apocalyptic number.

2159345560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2159345560 is an abundant number, since it is smaller than the sum of its proper divisors (2746361480).

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

2159345560 is a wasteful number, since it uses less digits than its factorization.

2159345560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524227 (or 524223 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 2159345560 is about 46468.7589677194. The cubic root of 2159345560 is about 1292.5302500693.

The spelling of 2159345560 in words is "two billion, one hundred fifty-nine million, three hundred forty-five thousand, five hundred sixty".