513300220016661 has 96 divisors (see below), whose sum is σ = 925220471086080. Its totient is φ = 266408504812800.

The previous prime is 513300220016567. The next prime is 513300220016663. The reversal of 513300220016661 is 166610022003315.

It is not a de Polignac number, because 513300220016661 - 2¹¹ = 513300220014613 is a prime.

It is a super-2 number, since 2×513300220016661² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513300220016663) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4031163766 + ... + 4031291096.

It is an arithmetic number, because the mean of its divisors is an integer number (9637713240480).

Almost surely, 2^{513300220016661} is an apocalyptic number.

It is an amenable number.

513300220016661 is a deficient number, since it is larger than the sum of its proper divisors (411920251069419).

513300220016661 is a wasteful number, since it uses less digits than its factorization.

513300220016661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132567 (or 132564 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 513300220016661 its reverse (166610022003315), we get a palindrome (679910242019976).

The spelling of 513300220016661 in words is "five hundred thirteen trillion, three hundred billion, two hundred twenty million, sixteen thousand, six hundred sixty-one".