2069505648 has 120 divisors (see below), whose sum is σ = 6718145408. Its totient is φ = 582443136.

The previous prime is 2069505629. The next prime is 2069505671. The reversal of 2069505648 is 8465059602.

2069505648 is a `hidden beast` number, since 20 + 69 + 5 + 0 + 564 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52215 + ... + 82857.

Almost surely, 2^2069505648 is an apocalyptic number.

2069505648 is a gapful number since it is divisible by the number (28) 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 2069505648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3359072704).

2069505648 is an abundant number, since it is smaller than the sum of its proper divisors (4648639760).

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

2069505648 is a wasteful number, since it uses less digits than its factorization.

2069505648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30731 (or 30722 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2069505648 is about 45491.8195723143. The cubic root of 2069505648 is about 1274.3504363718.

The spelling of 2069505648 in words is "two billion, sixty-nine million, five hundred five thousand, six hundred forty-eight".