163936247040 has 108 divisors (see below), whose sum is σ = 567202377924. Its totient is φ = 43716329472.

The previous prime is 163936247039. The next prime is 163936247063. The reversal of 163936247040 is 40742639361.

163936247040 is a `hidden beast` number, since 1 + 639 + 3 + 6 + 2 + 4 + 7 + 0 + 4 + 0 = 666.

163936247040 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 85114561536 + 78821685504 = 291744^2 + 280752^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7103769 + ... + 7126808.

Almost surely, 2^163936247040 is an apocalyptic number.

163936247040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163936247040 is an abundant number, since it is smaller than the sum of its proper divisors (403266130884).

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

163936247040 is a wasteful number, since it uses less digits than its factorization.

163936247040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14230604 (or 14230587 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 163936247040 in words is "one hundred sixty-three billion, nine hundred thirty-six million, two hundred forty-seven thousand, forty".