2945543616 has 140 divisors (see below), whose sum is σ = 9013667520. Its totient is φ = 950123520.

The previous prime is 2945543611. The next prime is 2945543617. The reversal of 2945543616 is 6163455492.

2945543616 is a `hidden beast` number, since 2 + 9 + 45 + 543 + 61 + 6 = 666.

2945543616 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945543611) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 151540 + ... + 169868.

Almost surely, 2^2945543616 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 2945543616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4506833760).

2945543616 is an abundant number, since it is smaller than the sum of its proper divisors (6068123904).

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

2945543616 is a wasteful number, since it uses less digits than its factorization.

2945543616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18384 (or 18365 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 2945543616 is about 54272.8626110693. The cubic root of 2945543616 is about 1433.4695960353.

The spelling of 2945543616 in words is "two billion, nine hundred forty-five million, five hundred forty-three thousand, six hundred sixteen".