212361650646 has 16 divisors (see below), whose sum is σ = 424902010224. Its totient is φ = 70757432064.

The previous prime is 212361650621. The next prime is 212361650647. The reversal of 212361650646 is 646056163212.

It is a junction number, because it is equal to n+sod(n) for n = 212361650598 and 212361650607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212361650647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7430755 + ... + 7459278.

It is an arithmetic number, because the mean of its divisors is an integer number (26556375639).

Almost surely, 2^212361650646 is an apocalyptic number.

212361650646 is an abundant number, since it is smaller than the sum of its proper divisors (212540359578).

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

212361650646 is a wasteful number, since it uses less digits than its factorization.

212361650646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14892415.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 212361650646 in words is "two hundred twelve billion, three hundred sixty-one million, six hundred fifty thousand, six hundred forty-six".