2745569616 has 180 divisors, whose sum is σ = 7906377888. Its totient is φ = 819333504.

The previous prime is 2745569611. The next prime is 2745569641. The reversal of 2745569616 is 6169655472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745569611) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33079111 + ... + 33079193.

Almost surely, 2^2745569616 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 2745569616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3953188944).

2745569616 is an abundant number, since it is smaller than the sum of its proper divisors (5160808272).

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

2745569616 is a wasteful number, since it uses less digits than its factorization.

2745569616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 130 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 51.

The square root of 2745569616 is about 52398.1833272872. The cubic root of 2745569616 is about 1400.2668906144.

The spelling of 2745569616 in words is "two billion, seven hundred forty-five million, five hundred sixty-nine thousand, six hundred sixteen".