145305213666544 has 40 divisors (see below), whose sum is σ = 281903487022080. Its totient is φ = 72555950720448.

The previous prime is 145305213666517. The next prime is 145305213666559. The reversal of 145305213666544 is 445666312503541.

It is a super-2 number, since 2×145305213666544² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 96536917 + ... + 98030539.

It is an arithmetic number, because the mean of its divisors is an integer number (7047587175552).

Almost surely, 2^{145305213666544} is an apocalyptic number.

It is an amenable number.

145305213666544 is a deficient number, since it is larger than the sum of its proper divisors (136598273355536).

145305213666544 is a wasteful number, since it uses less digits than its factorization.

145305213666544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501717 (or 1501711 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 145305213666544 in words is "one hundred forty-five trillion, three hundred five billion, two hundred thirteen million, six hundred sixty-six thousand, five hundred forty-four".