3616821516 has 288 divisors, whose sum is σ = 11114288640. Its totient is φ = 904780800.

The previous prime is 3616821497. The next prime is 3616821539. The reversal of 3616821516 is 6151286163.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35114721 + ... + 35114823.

It is an arithmetic number, because the mean of its divisors is an integer number (38591280).

Almost surely, 2^3616821516 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 3616821516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5557144320).

3616821516 is an abundant number, since it is smaller than the sum of its proper divisors (7497467124).

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

3616821516 is a wasteful number, since it uses less digits than its factorization.

3616821516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 276 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 3616821516 is about 60140.0159294957. The cubic root of 3616821516 is about 1535.0022834514.

The spelling of 3616821516 in words is "three billion, six hundred sixteen million, eight hundred twenty-one thousand, five hundred sixteen".