2066144531 has 8 divisors (see below), whose sum is σ = 2372606400. Its totient is φ = 1779454440.

The previous prime is 2066144519. The next prime is 2066144543. The reversal of 2066144531 is 1354416602.

It is an interprime number because it is at equal distance from previous prime (2066144519) and next prime (2066144543).

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 2066144531 - 2²² = 2061950227 is a prime.

It is a super-2 number, since 2×2066144531² = 8537906445962419922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066144551) 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, 4942721 + ... + 4943138.

It is an arithmetic number, because the mean of its divisors is an integer number (296575800).

Almost surely, 2^2066144531 is an apocalyptic number.

2066144531 is a deficient number, since it is larger than the sum of its proper divisors (306461869).

2066144531 is a wasteful number, since it uses less digits than its factorization.

2066144531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9885889.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2066144531 is about 45454.8625671666. The cubic root of 2066144531 is about 1273.6601649470.

The spelling of 2066144531 in words is "two billion, sixty-six million, one hundred forty-four thousand, five hundred thirty-one".