162228470872 has 64 divisors (see below), whose sum is σ = 329599670400. Its totient is φ = 74413140480.

The previous prime is 162228470857. The next prime is 162228470881. The reversal of 162228470872 is 278074822261.

It is a super-2 number, since 2×162228470872² (a number of 23 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, 21283222 + ... + 21290842.

It is an arithmetic number, because the mean of its divisors is an integer number (5149994850).

Almost surely, 2^162228470872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162228470872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164799835200).

162228470872 is an abundant number, since it is smaller than the sum of its proper divisors (167371199528).

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

162228470872 is a wasteful number, since it uses less digits than its factorization.

162228470872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8876 (or 8872 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 162228470872 in words is "one hundred sixty-two billion, two hundred twenty-eight million, four hundred seventy thousand, eight hundred seventy-two".