163240551936 has 1600 divisors, whose sum is σ = 670781067264. Its totient is φ = 38220595200.

The previous prime is 163240551931. The next prime is 163240551937. The reversal of 163240551936 is 639155042361.

163240551936 is a `hidden beast` number, since 1 + 6 + 3 + 2 + 4 + 0 + 551 + 93 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 163240551891 and 163240551900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163240551931) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1682892240 + ... + 1682892336.

Almost surely, 2^163240551936 is an apocalyptic number.

163240551936 is a gapful number since it is divisible by the number (16) 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 163240551936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335390533632).

163240551936 is an abundant number, since it is smaller than the sum of its proper divisors (507540515328).

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

163240551936 is a wasteful number, since it uses less digits than its factorization.

163240551936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 163240551936 in words is "one hundred sixty-three billion, two hundred forty million, five hundred fifty-one thousand, nine hundred thirty-six".