1651116608 has 42 divisors (see below), whose sum is σ = 3314679426. Its totient is φ = 816031744.

The previous prime is 1651116583. The next prime is 1651116641. The reversal of 1651116608 is 8066111561.

It can be written as a sum of positive squares in 3 ways, for example, as 108826624 + 1542289984 = 10432^2 + 39272^2 .

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, 505316 + ... + 508572.

Almost surely, 2^1651116608 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 1651116608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1657339713).

1651116608 is an abundant number, since it is smaller than the sum of its proper divisors (1663562818).

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

1651116608 is an frugal number, since it uses more digits than its factorization.

1651116608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 1651116608 is about 40633.9341929870. The cubic root of 1651116608 is about 1181.9322474175.

The spelling of 1651116608 in words is "one billion, six hundred fifty-one million, one hundred sixteen thousand, six hundred eight".