163444651024 has 10 divisors (see below), whose sum is σ = 316674011390. Its totient is φ = 81722325504.

The previous prime is 163444651009. The next prime is 163444651031. The reversal of 163444651024 is 420156444361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 130777703424 + 32666947600 = 361632^2 + 180740^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107645329 + ... + 5107645360.

It is an arithmetic number, because the mean of its divisors is an integer number (31667401139).

Almost surely, 2^163444651024 is an apocalyptic number.

It is an amenable number.

163444651024 is a deficient number, since it is larger than the sum of its proper divisors (153229360366).

163444651024 is a wasteful number, since it uses less digits than its factorization.

163444651024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215290697 (or 10215290691 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 163444651024 in words is "one hundred sixty-three billion, four hundred forty-four million, six hundred fifty-one thousand, twenty-four".