9948921616 has 20 divisors (see below), whose sum is σ = 19463184832. Its totient is φ = 4926164256.

The previous prime is 9948921613. The next prime is 9948921623. The reversal of 9948921616 is 6161298499.

It is not an unprimeable number, because it can be changed into a prime (9948921613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3016836 + ... + 3020131.

Almost surely, 2^9948921616 is an apocalyptic number.

It is an amenable number.

9948921616 is a deficient number, since it is larger than the sum of its proper divisors (9514263216).

9948921616 is a wasteful number, since it uses less digits than its factorization.

9948921616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037078 (or 6037072 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 9948921616 is about 99744.2811192702. The cubic root of 9948921616 is about 2150.7602586987.

The spelling of 9948921616 in words is "nine billion, nine hundred forty-eight million, nine hundred twenty-one thousand, six hundred sixteen".