145616444161 has 8 divisors (see below), whose sum is σ = 146924294400. Its totient is φ = 144312144288.

The previous prime is 145616444131. The next prime is 145616444173. The reversal of 145616444161 is 161444616541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145616444161 - 2²⁵ = 145582889729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145616444131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805161 + ... + 969286.

It is an arithmetic number, because the mean of its divisors is an integer number (18365536800).

Almost surely, 2^145616444161 is an apocalyptic number.

It is an amenable number.

145616444161 is a deficient number, since it is larger than the sum of its proper divisors (1307850239).

145616444161 is a wasteful number, since it uses less digits than its factorization.

145616444161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775183.

The product of its digits is 276480, while the sum is 43.

The spelling of 145616444161 in words is "one hundred forty-five billion, six hundred sixteen million, four hundred forty-four thousand, one hundred sixty-one".