66014479 has 4 divisors (see below), whose sum is σ = 66288640. Its totient is φ = 65740320.

The previous prime is 66014477. The next prime is 66014491. The reversal of 66014479 is 97441066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66014479 - 2¹ = 66014477 is a prime.

It is a super-2 number, since 2×66014479² = 8715822875282882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66014471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136719 + ... + 137200.

It is an arithmetic number, because the mean of its divisors is an integer number (16572160).

Almost surely, 2^66014479 is an apocalyptic number.

66014479 is a deficient number, since it is larger than the sum of its proper divisors (274161).

66014479 is a wasteful number, since it uses less digits than its factorization.

66014479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274160.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 66014479 is about 8124.9294766170. The cubic root of 66014479 is about 404.1535519794.

The spelling of 66014479 in words is "sixty-six million, fourteen thousand, four hundred seventy-nine".