2965661648 has 40 divisors (see below), whose sum is σ = 5923228032. Its totient is φ = 1437678848.

The previous prime is 2965661641. The next prime is 2965661663. The reversal of 2965661648 is 8461665692.

It is a super-3 number, since 3×2965661648³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2965661648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2965661641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62036 + ... + 98892.

Almost surely, 2^2965661648 is an apocalyptic number.

It is an amenable number.

2965661648 is a deficient number, since it is larger than the sum of its proper divisors (2957566384).

2965661648 is a wasteful number, since it uses less digits than its factorization.

2965661648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37019 (or 37013 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 2965661648 is about 54457.8887581955. Note that the first 3 decimals coincide. The cubic root of 2965661648 is about 1436.7257215822.

The spelling of 2965661648 in words is "two billion, nine hundred sixty-five million, six hundred sixty-one thousand, six hundred forty-eight".