2662686720 has 336 divisors, whose sum is σ = 9568720512. Its totient is φ = 684195840.

The previous prime is 2662686703. The next prime is 2662686787. The reversal of 2662686720 is 276862662.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11427724 + ... + 11427956.

Almost surely, 2^2662686720 is an apocalyptic number.

2662686720 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 2662686720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4784360256).

2662686720 is an abundant number, since it is smaller than the sum of its proper divisors (6906033792).

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

2662686720 is a wasteful number, since it uses less digits than its factorization.

2662686720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 2662686720 is about 51601.2278923671. The cubic root of 2662686720 is about 1386.0323199799.

The spelling of 2662686720 in words is "two billion, six hundred sixty-two million, six hundred eighty-six thousand, seven hundred twenty".