2066933572221 has 8 divisors (see below), whose sum is σ = 3149613062464. Its totient is φ = 1181104898400.

The previous prime is 2066933572201. The next prime is 2066933572241. The reversal of 2066933572221 is 1222753396602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2066933572201) and next prime (2066933572241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2066933572221 - 2²⁶ = 2066866463357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066933572201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49212704080 + ... + 49212704121.

It is an arithmetic number, because the mean of its divisors is an integer number (393701632808).

Almost surely, 2^{2066933572221} is an apocalyptic number.

2066933572221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2066933572221 is a deficient number, since it is larger than the sum of its proper divisors (1082679490243).

2066933572221 is an equidigital number, since it uses as much as digits as its factorization.

2066933572221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98425408211.

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 2066933572221 in words is "two trillion, sixty-six billion, nine hundred thirty-three million, five hundred seventy-two thousand, two hundred twenty-one".