172448655345 has 40 divisors (see below), whose sum is σ = 310699514664. Its totient is φ = 91505707776.

The previous prime is 172448655343. The next prime is 172448655373. The reversal of 172448655345 is 543556844271.

172448655345 is a `hidden beast` number, since 1 + 7 + 2 + 4 + 4 + 86 + 553 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 109830599649 + 62618055696 = 331407^2 + 250236^2 .

It is not a de Polignac number, because 172448655345 - 2¹ = 172448655343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172448655291 and 172448655300.

It is not an unprimeable number, because it can be changed into a prime (172448655341) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1000924 + ... + 1160493.

Almost surely, 2^172448655345 is an apocalyptic number.

172448655345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172448655345 is a deficient number, since it is larger than the sum of its proper divisors (138250859319).

172448655345 is a wasteful number, since it uses less digits than its factorization.

172448655345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161631 (or 2161622 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 54.

The spelling of 172448655345 in words is "one hundred seventy-two billion, four hundred forty-eight million, six hundred fifty-five thousand, three hundred forty-five".