145163978465 has 32 divisors (see below), whose sum is σ = 191504552832. Its totient is φ = 104758272000.

The previous prime is 145163978459. The next prime is 145163978497. The reversal of 145163978465 is 564879361541.

It is not a de Polignac number, because 145163978465 - 2³² = 140869011169 is a prime.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 5733935 + ... + 5759195.

It is an arithmetic number, because the mean of its divisors is an integer number (5984517276).

Almost surely, 2^145163978465 is an apocalyptic number.

It is an amenable number.

145163978465 is a deficient number, since it is larger than the sum of its proper divisors (46340574367).

145163978465 is a wasteful number, since it uses less digits than its factorization.

145163978465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26081.

The product of its digits is 21772800, while the sum is 59.

The spelling of 145163978465 in words is "one hundred forty-five billion, one hundred sixty-three million, nine hundred seventy-eight thousand, four hundred sixty-five".