216690320156262 has 16 divisors (see below), whose sum is σ = 433380873685680. Its totient is φ = 72230067823232.

The previous prime is 216690320156231. The next prime is 216690320156353. The reversal of 216690320156262 is 262651023096612.

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, 3791914 + ... + 21160322.

It is an arithmetic number, because the mean of its divisors is an integer number (27086304605355).

Almost surely, 2^{216690320156262} is an apocalyptic number.

216690320156262 is an abundant number, since it is smaller than the sum of its proper divisors (216690553529418).

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

216690320156262 is a wasteful number, since it uses less digits than its factorization.

216690320156262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19447767.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 216690320156262 in words is "two hundred sixteen trillion, six hundred ninety billion, three hundred twenty million, one hundred fifty-six thousand, two hundred sixty-two".