2066651113830 has 128 divisors (see below), whose sum is σ = 5181944689152. Its totient is φ = 527095769088.

The previous prime is 2066651113823. The next prime is 2066651113841. The reversal of 2066651113830 is 383111566602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12013504 + ... + 12184316.

It is an arithmetic number, because the mean of its divisors is an integer number (40483942884).

Almost surely, 2^{2066651113830} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066651113830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2590972344576).

2066651113830 is an abundant number, since it is smaller than the sum of its proper divisors (3115293575322).

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

2066651113830 is a wasteful number, since it uses less digits than its factorization.

2066651113830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171062.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 2066651113830 in words is "two trillion, sixty-six billion, six hundred fifty-one million, one hundred thirteen thousand, eight hundred thirty".