616303616 has 66 divisors (see below), whose sum is σ = 1265414460. Its totient is φ = 299929600.

The previous prime is 616303609. The next prime is 616303661.

616303616 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6101966 + ... + 6102066.

Almost surely, 2^616303616 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 616303616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632707230).

616303616 is an abundant number, since it is smaller than the sum of its proper divisors (649110844).

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

616303616 is an equidigital number, since it uses as much as digits as its factorization.

616303616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 616303616 is about 24825.4630571113. The cubic root of 616303616 is about 851.0039422574.

The spelling of 616303616 in words is "six hundred sixteen million, three hundred three thousand, six hundred sixteen".