2056056640 has 112 divisors (see below), whose sum is σ = 5401909440. Its totient is φ = 739143680.

The previous prime is 2056056547. The next prime is 2056056677. The reversal of 2056056640 is 466506502.

It is a junction number, because it is equal to n+sod(n) for n = 2056056596 and 2056056605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309999 + ... + 316561.

Almost surely, 2^2056056640 is an apocalyptic number.

2056056640 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 2056056640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2700954720).

2056056640 is an abundant number, since it is smaller than the sum of its proper divisors (3345852800).

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

2056056640 is a wasteful number, since it uses less digits than its factorization.

2056056640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680 (or 6670 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2056056640 is about 45343.7607615425. The cubic root of 2056056640 is about 1271.5839125341.

The spelling of 2056056640 in words is "two billion, fifty-six million, fifty-six thousand, six hundred forty".