2066601397 has 8 divisors (see below), whose sum is σ = 2362248000. Its totient is φ = 1771059264.

The previous prime is 2066601349. The next prime is 2066601403. The reversal of 2066601397 is 7931066602.

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

It is a cyclic number.

It is not a de Polignac number, because 2066601397 - 2¹¹ = 2066599349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066601337) 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, 22254 + ... + 68032.

It is an arithmetic number, because the mean of its divisors is an integer number (295281000).

Almost surely, 2^2066601397 is an apocalyptic number.

It is an amenable number.

2066601397 is a deficient number, since it is larger than the sum of its proper divisors (295646603).

2066601397 is an equidigital number, since it uses as much as digits as its factorization.

2066601397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52235.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2066601397 is about 45459.8877803278. The cubic root of 2066601397 is about 1273.7540352986.

Adding to 2066601397 its reverse (7931066602), we get a palindrome (9997667999).

The spelling of 2066601397 in words is "two billion, sixty-six million, six hundred one thousand, three hundred ninety-seven".