216164046 has 16 divisors (see below), whose sum is σ = 494089344. Its totient is φ = 61761144.

The previous prime is 216164021. The next prime is 216164071. The reversal of 216164046 is 640461612.

It is an interprime number because it is at equal distance from previous prime (216164021) and next prime (216164071).

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, 2573340 + ... + 2573423.

It is an arithmetic number, because the mean of its divisors is an integer number (30880584).

Almost surely, 2^216164046 is an apocalyptic number.

216164046 is an abundant number, since it is smaller than the sum of its proper divisors (277925298).

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

216164046 is a wasteful number, since it uses less digits than its factorization.

216164046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146775.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 216164046 is about 14702.5183557104. The cubic root of 216164046 is about 600.1518560075.

The spelling of 216164046 in words is "two hundred sixteen million, one hundred sixty-four thousand, forty-six".