163089239040 has 2112 divisors, whose sum is σ = 772527974400. Its totient is φ = 30831280128.

The previous prime is 163089239003. The next prime is 163089239081. The reversal of 163089239040 is 40932980361.

It is a happy number.

163089239040 is a `hidden beast` number, since 1 + 630 + 8 + 9 + 2 + 3 + 9 + 0 + 4 + 0 = 666.

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 191 ways as a sum of consecutive naturals, for example, 1832463316 + ... + 1832463404.

Almost surely, 2^163089239040 is an apocalyptic number.

163089239040 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 163089239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386263987200).

163089239040 is an abundant number, since it is smaller than the sum of its proper divisors (609438735360).

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

163089239040 is a wasteful number, since it uses less digits than its factorization.

163089239040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 163089239040 in words is "one hundred sixty-three billion, eighty-nine million, two hundred thirty-nine thousand, forty".