66513323134 has 16 divisors (see below), whose sum is σ = 104965657776. Its totient is φ = 31568616000.

The previous prime is 66513323131. The next prime is 66513323141. The reversal of 66513323134 is 43132331566.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 66513323093 and 66513323102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66513323131) 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 7 ways as a sum of consecutive naturals, for example, 10958292 + ... + 10964359.

It is an arithmetic number, because the mean of its divisors is an integer number (6560353611).

Almost surely, 2^66513323134 is an apocalyptic number.

66513323134 is a deficient number, since it is larger than the sum of its proper divisors (38452334642).

66513323134 is a wasteful number, since it uses less digits than its factorization.

66513323134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21922731.

The product of its digits is 116640, while the sum is 37.

The spelling of 66513323134 in words is "sixty-six billion, five hundred thirteen million, three hundred twenty-three thousand, one hundred thirty-four".