513507326066 has 32 divisors (see below), whose sum is σ = 933636844800. Its totient is φ = 206783156736.

The previous prime is 513507326039. The next prime is 513507326071. The reversal of 513507326066 is 660623705315.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1658435 + ... + 1943558.

It is an arithmetic number, because the mean of its divisors is an integer number (29176151400).

Almost surely, 2^513507326066 is an apocalyptic number.

513507326066 is a deficient number, since it is larger than the sum of its proper divisors (420129518734).

513507326066 is a wasteful number, since it uses less digits than its factorization.

513507326066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602618.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 513507326066 in words is "five hundred thirteen billion, five hundred seven million, three hundred twenty-six thousand, sixty-six".