9749201616 has 240 divisors, whose sum is σ = 36018373248. Its totient is φ = 2383257600.

The previous prime is 9749201603. The next prime is 9749201621. The reversal of 9749201616 is 6161029479.

9749201616 is a `hidden beast` number, since 9 + 7 + 4 + 9 + 20 + 1 + 616 = 666.

It is a super-2 number, since 2×9749201616² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162636 + ... + 214356.

Almost surely, 2^9749201616 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 9749201616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18009186624).

9749201616 is an abundant number, since it is smaller than the sum of its proper divisors (26269171632).

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

9749201616 is a wasteful number, since it uses less digits than its factorization.

9749201616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51770 (or 51761 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9749201616 is about 98738.0454333587. The cubic root of 9749201616 is about 2136.2710277645.

The spelling of 9749201616 in words is "nine billion, seven hundred forty-nine million, two hundred one thousand, six hundred sixteen".