145065707171 has 64 divisors (see below), whose sum is σ = 191634702336. Its totient is φ = 106513747200.

The previous prime is 145065707153. The next prime is 145065707183. The reversal of 145065707171 is 171707560541.

It is a de Polignac number, because none of the positive numbers 2^k-145065707171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145065707131) 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 63 ways as a sum of consecutive naturals, for example, 35614391 + ... + 35618463.

It is an arithmetic number, because the mean of its divisors is an integer number (2994292224).

Almost surely, 2^145065707171 is an apocalyptic number.

145065707171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

145065707171 is a deficient number, since it is larger than the sum of its proper divisors (46568995165).

145065707171 is a wasteful number, since it uses less digits than its factorization.

145065707171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4512.

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 145065707171 in words is "one hundred forty-five billion, sixty-five million, seven hundred seven thousand, one hundred seventy-one".