162249251472 has 640 divisors, whose sum is σ = 647187148800. Its totient is φ = 37573632000.

The previous prime is 162249251471. The next prime is 162249251477. The reversal of 162249251472 is 274152942261.

162249251472 is a `hidden beast` number, since 1 + 6 + 22 + 49 + 2 + 514 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (162249251471) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10736722 + ... + 10751822.

It is an arithmetic number, because the mean of its divisors is an integer number (1011229920).

Almost surely, 2^162249251472 is an apocalyptic number.

162249251472 is a gapful number since it is divisible by the number (12) 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 162249251472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323593574400).

162249251472 is an abundant number, since it is smaller than the sum of its proper divisors (484937897328).

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

162249251472 is a wasteful number, since it uses less digits than its factorization.

162249251472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15172 (or 15160 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 162249251472 in words is "one hundred sixty-two billion, two hundred forty-nine million, two hundred fifty-one thousand, four hundred seventy-two".