2215953616 has 10 divisors (see below), whose sum is σ = 4293410162. Its totient is φ = 1107976800.

The previous prime is 2215953599. The next prime is 2215953631. The reversal of 2215953616 is 6163595122.

It can be written as a sum of positive squares in only one way, i.e., 1376113216 + 839840400 = 37096^2 + 28980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69248535 + ... + 69248566.

Almost surely, 2^2215953616 is an apocalyptic number.

It is an amenable number.

2215953616 is a deficient number, since it is larger than the sum of its proper divisors (2077456546).

2215953616 is a wasteful number, since it uses less digits than its factorization.

2215953616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138497109 (or 138497103 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The square root of 2215953616 is about 47073.9165143501. The cubic root of 2215953616 is about 1303.7276866225.

The spelling of 2215953616 in words is "two billion, two hundred fifteen million, nine hundred fifty-three thousand, six hundred sixteen".