2216689545 has 32 divisors (see below), whose sum is σ = 4055212800. Its totient is φ = 1012884480.

The previous prime is 2216689523. The next prime is 2216689547. The reversal of 2216689545 is 5459866122.

It is not a de Polignac number, because 2216689545 - 2⁷ = 2216689417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2216689494 and 2216689503.

It is not an unprimeable number, because it can be changed into a prime (2216689547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359085 + ... + 365205.

It is an arithmetic number, because the mean of its divisors is an integer number (126725400).

Almost surely, 2^2216689545 is an apocalyptic number.

It is an amenable number.

2216689545 is a deficient number, since it is larger than the sum of its proper divisors (1838523255).

2216689545 is a wasteful number, since it uses less digits than its factorization.

2216689545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9585.

The product of its digits is 1036800, while the sum is 48.

The square root of 2216689545 is about 47081.7326040578. The cubic root of 2216689545 is about 1303.8719954222.

The spelling of 2216689545 in words is "two billion, two hundred sixteen million, six hundred eighty-nine thousand, five hundred forty-five".