610644216 has 128 divisors (see below), whose sum is σ = 1989550080. Its totient is φ = 151566336.

The previous prime is 610644193. The next prime is 610644299. The reversal of 610644216 is 612446016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28905 + ... + 45351.

It is an arithmetic number, because the mean of its divisors is an integer number (15543360).

Almost surely, 2^610644216 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 610644216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994775040).

610644216 is an abundant number, since it is smaller than the sum of its proper divisors (1378905864).

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

610644216 is a wasteful number, since it uses less digits than its factorization.

610644216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16493 (or 16489 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 610644216 is about 24711.2164006550. The cubic root of 610644216 is about 848.3910583610.

The spelling of 610644216 in words is "six hundred ten million, six hundred forty-four thousand, two hundred sixteen".