66006610514 has 16 divisors (see below), whose sum is σ = 107341680600. Its totient is φ = 30260127360.

The previous prime is 66006610499. The next prime is 66006610529. The reversal of 66006610514 is 41501660066.

It is an interprime number because it is at equal distance from previous prime (66006610499) and next prime (66006610529).

It can be written as a sum of positive squares in 4 ways, for example, as 41016375625 + 24990234889 = 202525^2 + 158083^2 .

It is a Curzon 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, 8515307 + ... + 8523054.

Almost surely, 2^66006610514 is an apocalyptic number.

66006610514 is a deficient number, since it is larger than the sum of its proper divisors (41335070086).

66006610514 is a wasteful number, since it uses less digits than its factorization.

66006610514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17038525.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 66006610514 in words is "sixty-six billion, six million, six hundred ten thousand, five hundred fourteen".