172228152607 has 4 divisors (see below), whose sum is σ = 196832174416. Its totient is φ = 147624130800.

The previous prime is 172228152599. The next prime is 172228152631. The reversal of 172228152607 is 706251822271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706251822271 = 59 ⋅11970369869.

It is a cyclic number.

It is not a de Polignac number, because 172228152607 - 2³ = 172228152599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172228152007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12302010894 + ... + 12302010907.

It is an arithmetic number, because the mean of its divisors is an integer number (49208043604).

Almost surely, 2^172228152607 is an apocalyptic number.

172228152607 is a deficient number, since it is larger than the sum of its proper divisors (24604021809).

172228152607 is an equidigital number, since it uses as much as digits as its factorization.

172228152607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24604021808.

The product of its (nonzero) digits is 188160, while the sum is 43.

Adding to 172228152607 its reverse (706251822271), we get a palindrome (878479974878).

The spelling of 172228152607 in words is "one hundred seventy-two billion, two hundred twenty-eight million, one hundred fifty-two thousand, six hundred seven".