53661264426445 has 16 divisors (see below), whose sum is σ = 69350835520512. Its totient is φ = 39624510899520.

The previous prime is 53661264426443. The next prime is 53661264426467. The reversal of 53661264426445 is 54462446216635.

It is not a de Polignac number, because 53661264426445 - 2¹ = 53661264426443 is a prime.

It is a super-3 number, since 3×53661264426445³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53661264426445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661264426443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22490907 + ... + 24762136.

It is an arithmetic number, because the mean of its divisors is an integer number (4334427220032).

Almost surely, 2^{53661264426445} is an apocalyptic number.

It is an amenable number.

53661264426445 is a deficient number, since it is larger than the sum of its proper divisors (15689571094067).

53661264426445 is a wasteful number, since it uses less digits than its factorization.

53661264426445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47270532.

The product of its digits is 99532800, while the sum is 58.

The spelling of 53661264426445 in words is "fifty-three trillion, six hundred sixty-one billion, two hundred sixty-four million, four hundred twenty-six thousand, four hundred forty-five".