1650665016 has 384 divisors, whose sum is σ = 6174604800. Its totient is φ = 384445440.

The previous prime is 1650664999. The next prime is 1650665041. The reversal of 1650665016 is 6105660561.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2666355 + ... + 2666973.

It is an arithmetic number, because the mean of its divisors is an integer number (16079700).

Almost surely, 2^1650665016 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 1650665016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3087302400).

1650665016 is an abundant number, since it is smaller than the sum of its proper divisors (4523939784).

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

1650665016 is a wasteful number, since it uses less digits than its factorization.

1650665016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1650665016 is about 40628.3769796432. The cubic root of 1650665016 is about 1181.8244819990.

It can be divided in two parts, 1650 and 665016, that added together give a palindrome (666666).

The spelling of 1650665016 in words is "one billion, six hundred fifty million, six hundred sixty-five thousand, sixteen".