172655484556270 has 16 divisors (see below), whose sum is σ = 318007311090480. Its totient is φ = 67456096291584.

The previous prime is 172655484556213. The next prime is 172655484556309. The reversal of 172655484556270 is 72655484556271.

It is a junction number, because it is equal to n+sod(n) for n = 172655484556196 and 172655484556205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200762190915 + ... + 200762191774.

It is an arithmetic number, because the mean of its divisors is an integer number (19875456943155).

Almost surely, 2^{172655484556270} is an apocalyptic number.

172655484556270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172655484556270 is a deficient number, since it is larger than the sum of its proper divisors (145351826534210).

172655484556270 is a wasteful number, since it uses less digits than its factorization.

172655484556270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401524382739.

The product of its (nonzero) digits is 564480000, while the sum is 67.

Subtracting from 172655484556270 its reverse (72655484556271), we obtain a palindrome (99999999999999).

The spelling of 172655484556270 in words is "one hundred seventy-two trillion, six hundred fifty-five billion, four hundred eighty-four million, five hundred fifty-six thousand, two hundred seventy".