212167334544 has 80 divisors (see below), whose sum is σ = 600407505984. Its totient is φ = 64026316800.

The previous prime is 212167334389. The next prime is 212167334581. The reversal of 212167334544 is 445433761212.

It is a junction number, because it is equal to n+sod(n) for n = 212167334496 and 212167334505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706429 + ... + 960924.

Almost surely, 2^212167334544 is an apocalyptic number.

212167334544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212167334544 is an abundant number, since it is smaller than the sum of its proper divisors (388240171440).

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

212167334544 is a wasteful number, since it uses less digits than its factorization.

212167334544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667616 (or 1667610 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The spelling of 212167334544 in words is "two hundred twelve billion, one hundred sixty-seven million, three hundred thirty-four thousand, five hundred forty-four".