145459955505 has 16 divisors (see below), whose sum is σ = 232754431104. Its totient is φ = 77572475520.

The previous prime is 145459955491. The next prime is 145459955551. The reversal of 145459955505 is 505559954541.

145459955505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145459955505 - 2⁶ = 145459955441 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187204 + ... + 570933.

It is an arithmetic number, because the mean of its divisors is an integer number (14547151944).

Almost surely, 2^145459955505 is an apocalyptic number.

145459955505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145459955505 is a deficient number, since it is larger than the sum of its proper divisors (87294475599).

145459955505 is a wasteful number, since it uses less digits than its factorization.

145459955505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770936.

The product of its (nonzero) digits is 20250000, while the sum is 57.

The spelling of 145459955505 in words is "one hundred forty-five billion, four hundred fifty-nine million, nine hundred fifty-five thousand, five hundred five".