4491415535616 has 135 divisors (see below), whose sum is σ = 12977155824451. Its totient is φ = 1496867241984.

The previous prime is 4491415535597. The next prime is 4491415535647. The reversal of 4491415535616 is 6165355141944.

The square root of 4491415535616 is 2119296.

It is a perfect power (a square), and thus also a powerful number.

4491415535616 is a `hidden beast` number, since 4 + 4 + 9 + 1 + 4 + 15 + 5 + 3 + 5 + 616 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 813806905 + ... + 813812423.

Almost surely, 2^{4491415535616} is an apocalyptic number.

4491415535616 is the 2119296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491415535616

4491415535616 is an abundant number, since it is smaller than the sum of its proper divisors (8485740288835).

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

4491415535616 is an frugal number, since it uses more digits than its factorization.

4491415535616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072 (or 5524 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 54.

The spelling of 4491415535616 in words is "four trillion, four hundred ninety-one billion, four hundred fifteen million, five hundred thirty-five thousand, six hundred sixteen".