2066597331 has 16 divisors (see below), whose sum is σ = 2772392448. Its totient is φ = 1369288800.

The previous prime is 2066597317. The next prime is 2066597363. The reversal of 2066597331 is 1337956602.

It is not a de Polignac number, because 2066597331 - 2²⁶ = 1999488467 is a prime.

It is a super-2 number, since 2×2066597331² = 8541649056992647122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2066597431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447846 + ... + 452436.

It is an arithmetic number, because the mean of its divisors is an integer number (173274528).

Almost surely, 2^2066597331 is an apocalyptic number.

2066597331 is a deficient number, since it is larger than the sum of its proper divisors (705795117).

2066597331 is a wasteful number, since it uses less digits than its factorization.

2066597331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 2066597331 is about 45459.8430595619. The cubic root of 2066597331 is about 1273.7531999356.

The spelling of 2066597331 in words is "two billion, sixty-six million, five hundred ninety-seven thousand, three hundred thirty-one".