163036452640 has 48 divisors (see below), whose sum is σ = 385774756920. Its totient is φ = 65112801280.

The previous prime is 163036452577. The next prime is 163036452641. The reversal of 163036452640 is 46254630361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119973562384 + 43062890256 = 346372^2 + 207516^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 163036452593 and 163036452602.

It is not an unprimeable number, because it can be changed into a prime (163036452641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692275 + ... + 897394.

Almost surely, 2^163036452640 is an apocalyptic number.

163036452640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163036452640 is an abundant number, since it is smaller than the sum of its proper divisors (222738304280).

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

163036452640 is a wasteful number, since it uses less digits than its factorization.

163036452640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590325 (or 1590317 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 163036452640 in words is "one hundred sixty-three billion, thirty-six million, four hundred fifty-two thousand, six hundred forty".