162237841920 has 1120 divisors, whose sum is σ = 727774312320. Its totient is φ = 33681899520.

The previous prime is 162237841907. The next prime is 162237841957. The reversal of 162237841920 is 29148732261.

162237841920 is a `hidden beast` number, since 1 + 6 + 223 + 7 + 8 + 419 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a super-2 number, since 2×162237841920² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 143699916 + ... + 143701044.

Almost surely, 2^162237841920 is an apocalyptic number.

162237841920 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 162237841920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363887156160).

162237841920 is an abundant number, since it is smaller than the sum of its proper divisors (565536470400).

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

162237841920 is an equidigital number, since it uses as much as digits as its factorization.

162237841920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

162237841920 divided by its product of nonzero digits (290304) gives a palindrome (558855).

The spelling of 162237841920 in words is "one hundred sixty-two billion, two hundred thirty-seven million, eight hundred forty-one thousand, nine hundred twenty".