163172677441 has 8 divisors (see below), whose sum is σ = 167230660968. Its totient is φ = 159118416000.

The previous prime is 163172677433. The next prime is 163172677457. The reversal of 163172677441 is 144776271361.

It can be written as a sum of positive squares in 4 ways, for example, as 3332637441 + 159840040000 = 57729^2 + 399800^2 .

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 163172677441 - 2³ = 163172677433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163172677541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841650 + ... + 1017211.

It is an arithmetic number, because the mean of its divisors is an integer number (20903832621).

Almost surely, 2^163172677441 is an apocalyptic number.

It is an amenable number.

163172677441 is a deficient number, since it is larger than the sum of its proper divisors (4057983527).

163172677441 is a wasteful number, since it uses less digits than its factorization.

163172677441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861043.

The product of its digits is 1185408, while the sum is 49.

The spelling of 163172677441 in words is "one hundred sixty-three billion, one hundred seventy-two million, six hundred seventy-seven thousand, four hundred forty-one".