2215918560 has 48 divisors (see below), whose sum is σ = 6980144976. Its totient is φ = 590911488.

The previous prime is 2215918501. The next prime is 2215918631. The reversal of 2215918560 is 658195122.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307769 + ... + 2308728.

It is an arithmetic number, because the mean of its divisors is an integer number (145419687).

Almost surely, 2^2215918560 is an apocalyptic number.

2215918560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215918560 is an abundant number, since it is smaller than the sum of its proper divisors (4764226416).

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

2215918560 is a wasteful number, since it uses less digits than its factorization.

2215918560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616515 (or 4616507 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 2215918560 is about 47073.5441622999. The cubic root of 2215918560 is about 1303.7208116713.

The spelling of 2215918560 in words is "two billion, two hundred fifteen million, nine hundred eighteen thousand, five hundred sixty".