272226216660 has 48 divisors (see below), whose sum is σ = 786821586432. Its totient is φ = 70251926400.

The previous prime is 272226216641. The next prime is 272226216721. The reversal of 272226216660 is 66612622272.

It is a super-2 number, since 2×272226216660² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73177231 + ... + 73180950.

It is an arithmetic number, because the mean of its divisors is an integer number (16392116384).

Almost surely, 2^272226216660 is an apocalyptic number.

272226216660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272226216660 is an abundant number, since it is smaller than the sum of its proper divisors (514595369772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272226216660 is a wasteful number, since it uses less digits than its factorization.

272226216660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146358224 (or 146358222 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 272226216660 in words is "two hundred seventy-two billion, two hundred twenty-six million, two hundred sixteen thousand, six hundred sixty".