530165105345621 has 4 divisors (see below), whose sum is σ = 530165272908000. Its totient is φ = 530164937783244.

The previous prime is 530165105345563. The next prime is 530165105345639. The reversal of 530165105345621 is 126543501561035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530165105345621 - 2²² = 530165101151317 is a prime.

It is a super-2 number, since 2×530165105345621² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530165105345921) 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, 78942041 + ... + 85394238.

It is an arithmetic number, because the mean of its divisors is an integer number (132541318227000).

Almost surely, 2^{530165105345621} is an apocalyptic number.

It is an amenable number.

530165105345621 is a deficient number, since it is larger than the sum of its proper divisors (167562379).

530165105345621 is a wasteful number, since it uses less digits than its factorization.

530165105345621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167562378.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 530165105345621 in words is "five hundred thirty trillion, one hundred sixty-five billion, one hundred five million, three hundred forty-five thousand, six hundred twenty-one".