2066434831 has 4 divisors (see below), whose sum is σ = 2067302200. Its totient is φ = 2065567464.

The previous prime is 2066434823. The next prime is 2066434873. The reversal of 2066434831 is 1384346602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066434831 - 2³ = 2066434823 is a prime.

It is a super-2 number, since 2×2066434831² = 8540305821539997122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066434631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430101 + ... + 434878.

It is an arithmetic number, because the mean of its divisors is an integer number (516825550).

Almost surely, 2^2066434831 is an apocalyptic number.

2066434831 is a deficient number, since it is larger than the sum of its proper divisors (867369).

2066434831 is an equidigital number, since it uses as much as digits as its factorization.

2066434831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867368.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 2066434831 is about 45458.0557327301. The cubic root of 2066434831 is about 1273.7198132799.

The spelling of 2066434831 in words is "two billion, sixty-six million, four hundred thirty-four thousand, eight hundred thirty-one".