210164320040 has 32 divisors (see below), whose sum is σ = 475482276360. Its totient is φ = 83601273600.

The previous prime is 210164320001. The next prime is 210164320049. The reversal of 210164320040 is 40023461012.

It can be written as a sum of positive squares in 4 ways, for example, as 126339015364 + 83825304676 = 355442^2 + 289526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210164319988 and 210164320015.

It is not an unprimeable number, because it can be changed into a prime (210164320049) 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 7 ways as a sum of consecutive naturals, for example, 14506871 + ... + 14521350.

Almost surely, 2^210164320040 is an apocalyptic number.

210164320040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210164320040 is an abundant number, since it is smaller than the sum of its proper divisors (265317956320).

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

210164320040 is a wasteful number, since it uses less digits than its factorization.

210164320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29028413 (or 29028409 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 210164320040 its reverse (40023461012), we get a palindrome (250187781052).

The spelling of 210164320040 in words is "two hundred ten billion, one hundred sixty-four million, three hundred twenty thousand, forty".