513163610556 has 24 divisors (see below), whose sum is σ = 1199671221504. Its totient is φ = 170727470640.

The previous prime is 513163610503. The next prime is 513163610587. The reversal of 513163610556 is 655016361315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40876740 + ... + 40889291.

It is an arithmetic number, because the mean of its divisors is an integer number (49986300896).

Almost surely, 2^513163610556 is an apocalyptic number.

It is an amenable number.

513163610556 is an abundant number, since it is smaller than the sum of its proper divisors (686507610948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513163610556 is a wasteful number, since it uses less digits than its factorization.

513163610556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81766561 (or 81766559 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 42.

The spelling of 513163610556 in words is "five hundred thirteen billion, one hundred sixty-three million, six hundred ten thousand, five hundred fifty-six".