2066997600 has 216 divisors, whose sum is σ = 7486708320. Its totient is φ = 536232960.

The previous prime is 2066997589. The next prime is 2066997643. The reversal of 2066997600 is 67996602.

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 35 ways as a sum of consecutive naturals, for example, 262521 + ... + 270279.

Almost surely, 2^2066997600 is an apocalyptic number.

2066997600 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 2066997600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3743354160).

2066997600 is an abundant number, since it is smaller than the sum of its proper divisors (5419710720).

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

2066997600 is a wasteful number, since it uses less digits than its factorization.

2066997600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7822 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2066997600 is about 45464.2452923173. The cubic root of 2066997600 is about 1273.8354302761.

The spelling of 2066997600 in words is "two billion, sixty-six million, nine hundred ninety-seven thousand, six hundred".