66051351 has 12 divisors (see below), whose sum is σ = 95748328. Its totient is φ = 43876944.

The previous prime is 66051329. The next prime is 66051361. The reversal of 66051351 is 15315066.

It is a happy number.

66051351 is a `hidden beast` number, since 6 + 605 + 1 + 3 + 51 = 666.

It is not a de Polignac number, because 66051351 - 2¹⁴ = 66034967 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 (66051301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10420 + ... + 15513.

Almost surely, 2^66051351 is an apocalyptic number.

66051351 is a deficient number, since it is larger than the sum of its proper divisors (29696977).

66051351 is a wasteful number, since it uses less digits than its factorization.

66051351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26222 (or 26219 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 66051351 is about 8127.1982257110. The cubic root of 66051351 is about 404.2287838395.

The spelling of 66051351 in words is "sixty-six million, fifty-one thousand, three hundred fifty-one".