816614166 has 16 divisors (see below), whose sum is σ = 1633511088. Its totient is φ = 272157600.

The previous prime is 816614153. The next prime is 816614177. The reversal of 816614166 is 661416618.

It is a super-2 number, since 2×816614166² = 1333717392223751112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54136 + ... + 67556.

It is an arithmetic number, because the mean of its divisors is an integer number (102094443).

Almost surely, 2^816614166 is an apocalyptic number.

816614166 is an abundant number, since it is smaller than the sum of its proper divisors (816896922).

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

816614166 is a wasteful number, since it uses less digits than its factorization.

816614166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23567.

The product of its digits is 41472, while the sum is 39.

The square root of 816614166 is about 28576.4617473892. The cubic root of 816614166 is about 934.7001301328.

The spelling of 816614166 in words is "eight hundred sixteen million, six hundred fourteen thousand, one hundred sixty-six".