53445012531663 has 8 divisors (see below), whose sum is σ = 71260659927808. Its totient is φ = 35629686744984.

The previous prime is 53445012531629. The next prime is 53445012531721. The reversal of 53445012531663 is 36613521054435.

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

It is not a de Polignac number, because 53445012531663 - 2¹⁶ = 53445012466127 is a prime.

It is a super-2 number, since 2×53445012531663² (a number of 28 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 (53445012531613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80014345 + ... + 80679522.

It is an arithmetic number, because the mean of its divisors is an integer number (8907582490976).

Almost surely, 2^{53445012531663} is an apocalyptic number.

53445012531663 is a deficient number, since it is larger than the sum of its proper divisors (17815647396145).

53445012531663 is a wasteful number, since it uses less digits than its factorization.

53445012531663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160804733.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 53445012531663 in words is "fifty-three trillion, four hundred forty-five billion, twelve million, five hundred thirty-one thousand, six hundred sixty-three".