1650652620 has 96 divisors (see below), whose sum is σ = 4779565056. Its totient is φ = 425356800.

The previous prime is 1650652613. The next prime is 1650652637. The reversal of 1650652620 is 262560561.

It is a happy number.

1650652620 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260085 + ... + 266355.

It is an arithmetic number, because the mean of its divisors is an integer number (49787136).

Almost surely, 2^1650652620 is an apocalyptic number.

1650652620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650652620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2389782528).

1650652620 is an abundant number, since it is smaller than the sum of its proper divisors (3128912436).

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

1650652620 is a wasteful number, since it uses less digits than its factorization.

1650652620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431 (or 6429 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1650652620 is about 40628.2244258840. The cubic root of 1650652620 is about 1181.8215236090.

The spelling of 1650652620 in words is "one billion, six hundred fifty million, six hundred fifty-two thousand, six hundred twenty".