4445161353999 has 24 divisors (see below), whose sum is σ = 6874869530880. Its totient is φ = 2757782404608.

The previous prime is 4445161353991. The next prime is 4445161354021. The reversal of 4445161353999 is 9993531615444.

It is a happy number.

4445161353999 is a `hidden beast` number, since 4 + 4 + 4 + 5 + 1 + 6 + 1 + 3 + 539 + 99 = 666.

It is not a de Polignac number, because 4445161353999 - 2³ = 4445161353991 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445161353991) 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, 163207407 + ... + 163234640.

It is an arithmetic number, because the mean of its divisors is an integer number (286452897120).

Almost surely, 2^{4445161353999} is an apocalyptic number.

4445161353999 is a deficient number, since it is larger than the sum of its proper divisors (2429708176881).

4445161353999 is a wasteful number, since it uses less digits than its factorization.

4445161353999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326442159 (or 326442156 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 63.

The spelling of 4445161353999 in words is "four trillion, four hundred forty-five billion, one hundred sixty-one million, three hundred fifty-three thousand, nine hundred ninety-nine".