513366121641 has 8 divisors (see below), whose sum is σ = 684503725024. Its totient is φ = 342236299680.

The previous prime is 513366121627. The next prime is 513366121651. The reversal of 513366121641 is 146121663315.

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

It is not a de Polignac number, because 513366121641 - 2¹⁴ = 513366105257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513366121641.

It is not an unprimeable number, because it can be changed into a prime (513366121651) 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, 1789636 + ... + 2056581.

It is an arithmetic number, because the mean of its divisors is an integer number (85562965628).

Almost surely, 2^513366121641 is an apocalyptic number.

It is an amenable number.

513366121641 is a deficient number, since it is larger than the sum of its proper divisors (171137603383).

513366121641 is a wasteful number, since it uses less digits than its factorization.

513366121641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890711.

The product of its digits is 77760, while the sum is 39.

Adding to 513366121641 its reverse (146121663315), we get a palindrome (659487784956).

The spelling of 513366121641 in words is "five hundred thirteen billion, three hundred sixty-six million, one hundred twenty-one thousand, six hundred forty-one".