213446230063650 has 144 divisors (see below), whose sum is σ = 576039268794600. Its totient is φ = 56663240186880.

The previous prime is 213446230063559. The next prime is 213446230063663. The reversal of 213446230063650 is 56360032644312.

213446230063650 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 4 + 6 + 2 + 3 + 0 + 0 + 636 + 5 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 6735535374681 + 206710694688969 = 2595291^2 + 14377437^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 213446230063596 and 213446230063605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 139971496 + ... + 141488204.

Almost surely, 2^{213446230063650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213446230063650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288019634397300).

213446230063650 is an abundant number, since it is smaller than the sum of its proper divisors (362593038730950).

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

213446230063650 is a wasteful number, since it uses less digits than its factorization.

213446230063650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518133 (or 1518125 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 213446230063650 in words is "two hundred thirteen trillion, four hundred forty-six billion, two hundred thirty million, sixty-three thousand, six hundred fifty".