212432301656 has 32 divisors (see below), whose sum is σ = 404362549440. Its totient is φ = 104603128608.

The previous prime is 212432301623. The next prime is 212432301671. The reversal of 212432301656 is 656103234212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052215 + ... + 2153241.

It is an arithmetic number, because the mean of its divisors is an integer number (12636329670).

Almost surely, 2^212432301656 is an apocalyptic number.

It is an amenable number.

212432301656 is a deficient number, since it is larger than the sum of its proper divisors (191930247784).

212432301656 is a wasteful number, since it uses less digits than its factorization.

212432301656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105023 (or 105019 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 212432301656 its reverse (656103234212), we get a palindrome (868535535868).

The spelling of 212432301656 in words is "two hundred twelve billion, four hundred thirty-two million, three hundred one thousand, six hundred fifty-six".