66563014 has 16 divisors (see below), whose sum is σ = 117789696. Its totient is φ = 27606600.

The previous prime is 66563009. The next prime is 66563053. The reversal of 66563014 is 41036566.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76252 + ... + 77119.

It is an arithmetic number, because the mean of its divisors is an integer number (7361856).

Almost surely, 2^66563014 is an apocalyptic number.

66563014 is a deficient number, since it is larger than the sum of its proper divisors (51226682).

66563014 is a wasteful number, since it uses less digits than its factorization.

66563014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153411.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 66563014 is about 8158.6159365422. The cubic root of 66563014 is about 405.2698785480.

The spelling of 66563014 in words is "sixty-six million, five hundred sixty-three thousand, fourteen".