2657220216 has 96 divisors (see below), whose sum is σ = 7784508240. Its totient is φ = 753618432.

The previous prime is 2657220187. The next prime is 2657220253. The reversal of 2657220216 is 6120227562.

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, 152866 + ... + 169358.

Almost surely, 2^2657220216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2657220216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3892254120).

2657220216 is an abundant number, since it is smaller than the sum of its proper divisors (5127288024).

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

2657220216 is a wasteful number, since it uses less digits than its factorization.

2657220216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16653 (or 16642 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 2657220216 is about 51548.2319386417. The cubic root of 2657220216 is about 1385.0831606068.

Adding to 2657220216 its reverse (6120227562), we get a palindrome (8777447778).

The spelling of 2657220216 in words is "two billion, six hundred fifty-seven million, two hundred twenty thousand, two hundred sixteen".