615604016 has 40 divisors (see below), whose sum is σ = 1247491584. Its totient is φ = 293733440.

The previous prime is 615604013. The next prime is 615604019. The reversal of 615604016 is 610406516.

It is an interprime number because it is at equal distance from previous prime (615604013) and next prime (615604019).

It is a self number, because there is not a number n which added to its sum of digits gives 615604016.

It is not an unprimeable number, because it can be changed into a prime (615604013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178985 + ... + 182391.

Almost surely, 2^615604016 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 615604016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623745792).

615604016 is an abundant number, since it is smaller than the sum of its proper divisors (631887568).

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

615604016 is a wasteful number, since it uses less digits than its factorization.

615604016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 615604016 is about 24811.3686845365. The cubic root of 615604016 is about 850.6818132716.

The spelling of 615604016 in words is "six hundred fifteen million, six hundred four thousand, sixteen".