210446640104 has 16 divisors (see below), whose sum is σ = 399341517120. Its totient is φ = 103955568880.

The previous prime is 210446640101. The next prime is 210446640163. The reversal of 210446640104 is 401046644012.

It is a super-2 number, since 2×210446640104² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210446640101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158468192 + ... + 158469519.

It is an arithmetic number, because the mean of its divisors is an integer number (24958844820).

Almost surely, 2^210446640104 is an apocalyptic number.

It is an amenable number.

210446640104 is a deficient number, since it is larger than the sum of its proper divisors (188894877016).

210446640104 is a wasteful number, since it uses less digits than its factorization.

210446640104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316937800 (or 316937796 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 210446640104 in words is "two hundred ten billion, four hundred forty-six million, six hundred forty thousand, one hundred four".