212766345776 has 20 divisors (see below), whose sum is σ = 426449788800. Its totient is φ = 102714787392.

The previous prime is 212766345763. The next prime is 212766345833. The reversal of 212766345776 is 677543667212.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 229273616 + ... + 229274543.

It is an arithmetic number, because the mean of its divisors is an integer number (21322489440).

Almost surely, 2^212766345776 is an apocalyptic number.

It is an amenable number.

212766345776 is an abundant number, since it is smaller than the sum of its proper divisors (213683443024).

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

212766345776 is a wasteful number, since it uses less digits than its factorization.

212766345776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458548196 (or 458548190 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 56.

The spelling of 212766345776 in words is "two hundred twelve billion, seven hundred sixty-six million, three hundred forty-five thousand, seven hundred seventy-six".