162722465280 has 480 divisors, whose sum is σ = 573597573120. Its totient is φ = 42627317760.

The previous prime is 162722465267. The next prime is 162722465281. The reversal of 162722465280 is 82564227261.

162722465280 is a `hidden beast` number, since 1 + 62 + 7 + 22 + 46 + 528 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-3 number, since 3×162722465280³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162722465281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 453265741 + ... + 453266099.

It is an arithmetic number, because the mean of its divisors is an integer number (1194994944).

Almost surely, 2^162722465280 is an apocalyptic number.

162722465280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162722465280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286798786560).

162722465280 is an abundant number, since it is smaller than the sum of its proper divisors (410875107840).

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

162722465280 is a wasteful number, since it uses less digits than its factorization.

162722465280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 162722465280 in words is "one hundred sixty-two billion, seven hundred twenty-two million, four hundred sixty-five thousand, two hundred eighty".