641165610053 has 4 divisors (see below), whose sum is σ = 642912655680. Its totient is φ = 639418564428.

The previous prime is 641165610049. The next prime is 641165610067. The reversal of 641165610053 is 350016561146.

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 641165610053 - 2² = 641165610049 is a prime.

It is a super-2 number, since 2×641165610053² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 641165609989 and 641165610016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641165610083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873522263 + ... + 873522996.

It is an arithmetic number, because the mean of its divisors is an integer number (160728163920).

Almost surely, 2^641165610053 is an apocalyptic number.

It is an amenable number.

641165610053 is a deficient number, since it is larger than the sum of its proper divisors (1747045627).

641165610053 is a wasteful number, since it uses less digits than its factorization.

641165610053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747045626.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 641165610053 in words is "six hundred forty-one billion, one hundred sixty-five million, six hundred ten thousand, fifty-three".