66377349 has 12 divisors (see below), whose sum is σ = 96468736. Its totient is φ = 43979112.

The previous prime is 66377329. The next prime is 66377351. The reversal of 66377349 is 94377366.

66377349 is a `hidden beast` number, since 6 + 637 + 7 + 3 + 4 + 9 = 666.

It is not a de Polignac number, because 66377349 - 2¹¹ = 66375301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66377309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21157 + ... + 24090.

Almost surely, 2^66377349 is an apocalyptic number.

It is an amenable number.

66377349 is a deficient number, since it is larger than the sum of its proper divisors (30091387).

66377349 is a wasteful number, since it uses less digits than its factorization.

66377349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45416 (or 45413 counting only the distinct ones).

The product of its digits is 571536, while the sum is 45.

The square root of 66377349 is about 8147.2295291099. The cubic root of 66377349 is about 404.8927196417.

The spelling of 66377349 in words is "sixty-six million, three hundred seventy-seven thousand, three hundred forty-nine".