216165422 has 8 divisors (see below), whose sum is σ = 353725272. Its totient is φ = 98257000.

The previous prime is 216165401. The next prime is 216165437. The reversal of 216165422 is 224561612.

216165422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4912829 + ... + 4912872.

It is an arithmetic number, because the mean of its divisors is an integer number (44215659).

Almost surely, 2^216165422 is an apocalyptic number.

216165422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

216165422 is a deficient number, since it is larger than the sum of its proper divisors (137559850).

216165422 is a wasteful number, since it uses less digits than its factorization.

216165422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9825714.

The product of its digits is 5760, while the sum is 29.

The square root of 216165422 is about 14702.5651503403. The cubic root of 216165422 is about 600.1531294342.

The spelling of 216165422 in words is "two hundred sixteen million, one hundred sixty-five thousand, four hundred twenty-two".