66513334 has 8 divisors (see below), whose sum is σ = 99811008. Its totient is φ = 33243000.

The previous prime is 66513331. The next prime is 66513341. The reversal of 66513334 is 43331566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66513296 and 66513305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66513331) 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, 1084 + ... + 11584.

It is an arithmetic number, because the mean of its divisors is an integer number (12476376).

Almost surely, 2^66513334 is an apocalyptic number.

66513334 is a deficient number, since it is larger than the sum of its proper divisors (33297674).

66513334 is a wasteful number, since it uses less digits than its factorization.

66513334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13670.

The product of its digits is 19440, while the sum is 31.

The square root of 66513334 is about 8155.5707341669. The cubic root of 66513334 is about 405.1690276527.

The spelling of 66513334 in words is "sixty-six million, five hundred thirteen thousand, three hundred thirty-four".