656006616 has 96 divisors (see below), whose sum is σ = 1896102000. Its totient is φ = 204291072.

The previous prime is 656006609. The next prime is 656006639. The reversal of 656006616 is 616600656.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96580 + ... + 103148.

Almost surely, 2^656006616 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 656006616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (948051000).

656006616 is an abundant number, since it is smaller than the sum of its proper divisors (1240095384).

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

656006616 is a wasteful number, since it uses less digits than its factorization.

656006616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6666 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 656006616 is about 25612.6261051068. The cubic root of 656006616 is about 868.8992181896.

The spelling of 656006616 in words is "six hundred fifty-six million, six thousand, six hundred sixteen".