163970838850 has 324 divisors, whose sum is σ = 405822582054. Its totient is φ = 49117985280.

The previous prime is 163970838839. The next prime is 163970838859. The reversal of 163970838850 is 58838079361.

163970838850 is digitally balanced in base 3, 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 9 ways, for example, as 10136663761 + 153834175089 = 100681^2 + 392217^2 .

It is not an unprimeable number, because it can be changed into a prime (163970838859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 161 ways as a sum of consecutive naturals, for example, 149471502 + ... + 149472598.

Almost surely, 2^163970838850 is an apocalyptic number.

163970838850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163970838850 is an abundant number, since it is smaller than the sum of its proper divisors (241851743204).

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

163970838850 is a wasteful number, since it uses less digits than its factorization.

163970838850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 163970838850 in words is "one hundred sixty-three billion, nine hundred seventy million, eight hundred thirty-eight thousand, eight hundred fifty".