2173012560 has 120 divisors (see below), whose sum is σ = 7310793984. Its totient is φ = 578430720.

The previous prime is 2173012559. The next prime is 2173012571. The reversal of 2173012560 is 652103712.

It is a happy number.

2173012560 is a `hidden beast` number, since 21 + 73 + 0 + 12 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451929 + ... + 456711.

Almost surely, 2^2173012560 is an apocalyptic number.

2173012560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173012560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3655396992).

2173012560 is an abundant number, since it is smaller than the sum of its proper divisors (5137781424).

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

2173012560 is a wasteful number, since it uses less digits than its factorization.

2173012560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433 (or 5424 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2173012560 is about 46615.5828023205. The cubic root of 2173012560 is about 1295.2514252710.

The spelling of 2173012560 in words is "two billion, one hundred seventy-three million, twelve thousand, five hundred sixty".