2056761616 has 80 divisors (see below), whose sum is σ = 4955488384. Its totient is φ = 805220352.

The previous prime is 2056761611. The next prime is 2056761631. The reversal of 2056761616 is 6161676502.

It is not an unprimeable number, because it can be changed into a prime (2056761611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133951 + ... + 148513.

Almost surely, 2^2056761616 is an apocalyptic number.

2056761616 is a gapful number since it is divisible by the number (26) 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 2056761616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2477744192).

2056761616 is an abundant number, since it is smaller than the sum of its proper divisors (2898726768).

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

2056761616 is a wasteful number, since it uses less digits than its factorization.

2056761616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14688 (or 14682 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 2056761616 is about 45351.5337778117. The cubic root of 2056761616 is about 1271.7292285217.

The spelling of 2056761616 in words is "two billion, fifty-six million, seven hundred sixty-one thousand, six hundred sixteen".