2091982656 has 28 divisors (see below), whose sum is σ = 5535037952. Its totient is φ = 697327488.

The previous prime is 2091982649. The next prime is 2091982667. The reversal of 2091982656 is 6562891902.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5447680 + ... + 5448063.

Almost surely, 2^2091982656 is an apocalyptic number.

It is an amenable number.

2091982656 is an abundant number, since it is smaller than the sum of its proper divisors (3443055296).

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

2091982656 is a wasteful number, since it uses less digits than its factorization.

2091982656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895758 (or 10895748 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 2091982656 is about 45738.1969036822. The cubic root of 2091982656 is about 1278.9474289567.

The spelling of 2091982656 in words is "two billion, ninety-one million, nine hundred eighty-two thousand, six hundred fifty-six".