2069645760 has 672 divisors, whose sum is σ = 8986723200. Its totient is φ = 425558016.

The previous prime is 2069645693. The next prime is 2069645779. The reversal of 2069645760 is 675469602.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 13890166 + ... + 13890314.

It is an arithmetic number, because the mean of its divisors is an integer number (13373100).

Almost surely, 2^2069645760 is an apocalyptic number.

2069645760 is a gapful number since it is divisible by the number (20) 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 2069645760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4493361600).

2069645760 is an abundant number, since it is smaller than the sum of its proper divisors (6917077440).

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

2069645760 is a wasteful number, since it uses less digits than its factorization.

2069645760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 2069645760 is about 45493.3595154282. The cubic root of 2069645760 is about 1274.3791948918.

The spelling of 2069645760 in words is "two billion, sixty-nine million, six hundred forty-five thousand, seven hundred sixty".