163211051040 has 96 divisors (see below), whose sum is σ = 517086835776. Its totient is φ = 43271347200.

The previous prime is 163211051021. The next prime is 163211051041. The reversal of 163211051040 is 40150112361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 163211051040.

It is not an unprimeable number, because it can be changed into a prime (163211051041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899686 + ... + 1065765.

It is an arithmetic number, because the mean of its divisors is an integer number (5386321206).

Almost surely, 2^163211051040 is an apocalyptic number.

163211051040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163211051040 is an abundant number, since it is smaller than the sum of its proper divisors (353875784736).

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

163211051040 is a wasteful number, since it uses less digits than its factorization.

163211051040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965642 (or 1965634 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 163211051040 in words is "one hundred sixty-three billion, two hundred eleven million, fifty-one thousand, forty".