216738224634582 has 48 divisors (see below), whose sum is σ = 568254841064352. Its totient is φ = 58282547800320.

The previous prime is 216738224634553. The next prime is 216738224634601. The reversal of 216738224634582 is 285436422837612.

216738224634582 is a `hidden beast` number, since 2 + 1 + 6 + 7 + 3 + 8 + 2 + 2 + 46 + 3 + 4 + 582 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50592487269 + ... + 50592491552.

It is an arithmetic number, because the mean of its divisors is an integer number (11838642522174).

Almost surely, 2^{216738224634582} is an apocalyptic number.

216738224634582 is an abundant number, since it is smaller than the sum of its proper divisors (351516616429770).

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

216738224634582 is a wasteful number, since it uses less digits than its factorization.

216738224634582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101184978853 (or 101184978850 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 63.

The spelling of 216738224634582 in words is "two hundred sixteen trillion, seven hundred thirty-eight billion, two hundred twenty-four million, six hundred thirty-four thousand, five hundred eighty-two".