66151103 has 4 divisors (see below), whose sum is σ = 69632760. Its totient is φ = 62669448.

The previous prime is 66151093. The next prime is 66151123. The reversal of 66151103 is 30115166.

It is a happy number.

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

It is not a de Polignac number, because 66151103 - 2⁴ = 66151087 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 (66151123) 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, 1740800 + ... + 1740837.

It is an arithmetic number, because the mean of its divisors is an integer number (17408190).

Almost surely, 2^66151103 is an apocalyptic number.

66151103 is a deficient number, since it is larger than the sum of its proper divisors (3481657).

66151103 is a wasteful number, since it uses less digits than its factorization.

66151103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481656.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 66151103 is about 8133.3328346994. The cubic root of 66151103 is about 404.4321728058.

Adding to 66151103 its reverse (30115166), we get a palindrome (96266269).

The spelling of 66151103 in words is "sixty-six million, one hundred fifty-one thousand, one hundred three".