66351151 has 4 divisors (see below), whose sum is σ = 66526600. Its totient is φ = 66175704.

The previous prime is 66351149. The next prime is 66351163. The reversal of 66351151 is 15115366.

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 66351151 - 2¹ = 66351149 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 (66352151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87156 + ... + 87913.

It is an arithmetic number, because the mean of its divisors is an integer number (16631650).

Almost surely, 2^66351151 is an apocalyptic number.

66351151 is a deficient number, since it is larger than the sum of its proper divisors (175449).

66351151 is a wasteful number, since it uses less digits than its factorization.

66351151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175448.

The product of its digits is 2700, while the sum is 28.

The square root of 66351151 is about 8145.6215846306. The cubic root of 66351151 is about 404.8394445640.

The spelling of 66351151 in words is "sixty-six million, three hundred fifty-one thousand, one hundred fifty-one".