66311134 has 4 divisors (see below), whose sum is σ = 99466704. Its totient is φ = 33155566.

The previous prime is 66311129. The next prime is 66311137. The reversal of 66311134 is 43111366.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 66311099 and 66311108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66311137) 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 as a sum of consecutive naturals, namely, 16577782 + ... + 16577785.

It is an arithmetic number, because the mean of its divisors is an integer number (24866676).

Almost surely, 2^66311134 is an apocalyptic number.

66311134 is a deficient number, since it is larger than the sum of its proper divisors (33155570).

66311134 is a wasteful number, since it uses less digits than its factorization.

66311134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33155569.

The product of its digits is 1296, while the sum is 25.

The square root of 66311134 is about 8143.1648638598. The cubic root of 66311134 is about 404.7580407110.

The spelling of 66311134 in words is "sixty-six million, three hundred eleven thousand, one hundred thirty-four".