615983616 has 120 divisors (see below), whose sum is σ = 1843986144. Its totient is φ = 205286400.

The previous prime is 615983597. The next prime is 615983617. The reversal of 615983616 is 616389516.

It is not an unprimeable number, because it can be changed into a prime (615983617) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 121941 + ... + 126891.

Almost surely, 2^615983616 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 615983616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921993072).

615983616 is an abundant number, since it is smaller than the sum of its proper divisors (1228002528).

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

615983616 is an frugal number, since it uses more digits than its factorization.

615983616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984 (or 4956 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 615983616 is about 24819.0172247009. The cubic root of 615983616 is about 850.8566293638.

The spelling of 615983616 in words is "six hundred fifteen million, nine hundred eighty-three thousand, six hundred sixteen".