66012814 has 8 divisors (see below), whose sum is σ = 113164848. Its totient is φ = 28291200.

The previous prime is 66012809. The next prime is 66012823. The reversal of 66012814 is 41821066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66012814² = 8715383224397192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357587 + ... + 2357614.

It is an arithmetic number, because the mean of its divisors is an integer number (14145606).

Almost surely, 2^66012814 is an apocalyptic number.

66012814 is a deficient number, since it is larger than the sum of its proper divisors (47152034).

66012814 is a wasteful number, since it uses less digits than its factorization.

66012814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715210.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 66012814 is about 8124.8270135431. The cubic root of 66012814 is about 404.1501541322.

The spelling of 66012814 in words is "sixty-six million, twelve thousand, eight hundred fourteen".