145155300320205 has 24 divisors (see below), whose sum is σ = 287545737777792. Its totient is φ = 66356708717664.

The previous prime is 145155300320201. The next prime is 145155300320221. The reversal of 145155300320205 is 502023003551541.

145155300320205 is a `hidden beast` number, since 1 + 4 + 5 + 1 + 5 + 5 + 300 + 320 + 20 + 5 = 666.

It is not a de Polignac number, because 145155300320205 - 2² = 145155300320201 is a prime.

It is a super-2 number, since 2×145155300320205² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145155300320205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145155300320201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230405238289 + ... + 230405238918.

It is an arithmetic number, because the mean of its divisors is an integer number (11981072407408).

Almost surely, 2^{145155300320205} is an apocalyptic number.

145155300320205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145155300320205 is a deficient number, since it is larger than the sum of its proper divisors (142390437457587).

145155300320205 is a wasteful number, since it uses less digits than its factorization.

145155300320205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460810477225 (or 460810477222 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 145155300320205 its reverse (502023003551541), we get a palindrome (647178303871746).

The spelling of 145155300320205 in words is "one hundred forty-five trillion, one hundred fifty-five billion, three hundred million, three hundred twenty thousand, two hundred five".