66114563 has 4 divisors (see below), whose sum is σ = 66911208. Its totient is φ = 65317920.

The previous prime is 66114553. The next prime is 66114569. The reversal of 66114563 is 36541166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36541166 = 2 ⋅18270583.

It is a cyclic number.

It is not a de Polignac number, because 66114563 - 2¹⁰ = 66113539 is a prime.

It is a super-2 number, since 2×66114563² = 8742270881361938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66114569) 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, 398198 + ... + 398363.

It is an arithmetic number, because the mean of its divisors is an integer number (16727802).

Almost surely, 2^66114563 is an apocalyptic number.

66114563 is a deficient number, since it is larger than the sum of its proper divisors (796645).

66114563 is an equidigital number, since it uses as much as digits as its factorization.

66114563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796644.

The product of its digits is 12960, while the sum is 32.

The square root of 66114563 is about 8131.0862128008. The cubic root of 66114563 is about 404.3576934561.

The spelling of 66114563 in words is "sixty-six million, one hundred fourteen thousand, five hundred sixty-three".