212163517168634 has 16 divisors (see below), whose sum is σ = 318972728025600. Its totient is φ = 105839278312464.

The previous prime is 212163517168627. The next prime is 212163517168739. The reversal of 212163517168634 is 436861715361212.

It is a self number, because there is not a number n which added to its sum of digits gives 212163517168634.

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, 118792919 + ... + 120565685.

It is an arithmetic number, because the mean of its divisors is an integer number (19935795501600).

Almost surely, 2^{212163517168634} is an apocalyptic number.

212163517168634 is a deficient number, since it is larger than the sum of its proper divisors (106809210856966).

212163517168634 is a wasteful number, since it uses less digits than its factorization.

212163517168634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909517.

The product of its digits is 8709120, while the sum is 56.

The spelling of 212163517168634 in words is "two hundred twelve trillion, one hundred sixty-three billion, five hundred seventeen million, one hundred sixty-eight thousand, six hundred thirty-four".