3520616640 has 112 divisors (see below), whose sum is σ = 11196535392. Its totient is φ = 937271296.

The previous prime is 3520616599. The next prime is 3520616651. The reversal of 3520616640 is 466160253.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647212 + ... + 652628.

It is an arithmetic number, because the mean of its divisors is an integer number (99969066).

Almost surely, 2^3520616640 is an apocalyptic number.

3520616640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3520616640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5598267696).

3520616640 is an abundant number, since it is smaller than the sum of its proper divisors (7675918752).

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

3520616640 is a wasteful number, since it uses less digits than its factorization.

3520616640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6104 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 3520616640 is about 59334.7844017318. The cubic root of 3520616640 is about 1521.2698068683.

Adding to 3520616640 its reverse (466160253), we get a palindrome (3986776893).

The spelling of 3520616640 in words is "three billion, five hundred twenty million, six hundred sixteen thousand, six hundred forty".