2621016256 has 56 divisors (see below), whose sum is σ = 5529285360. Its totient is φ = 1229184000.

The previous prime is 2621016239. The next prime is 2621016287. The reversal of 2621016256 is 6526101262.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112146 + ... + 133486.

Almost surely, 2^2621016256 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 2621016256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764642680).

2621016256 is an abundant number, since it is smaller than the sum of its proper divisors (2908269104).

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

2621016256 is a wasteful number, since it uses less digits than its factorization.

2621016256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21473 (or 21463 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2621016256 is about 51195.8617077592. The cubic root of 2621016256 is about 1378.7639032832.

The spelling of 2621016256 in words is "two billion, six hundred twenty-one million, sixteen thousand, two hundred fifty-six".