816063012 has 42 divisors (see below), whose sum is σ = 2141193558. Its totient is φ = 272020032.

The previous prime is 816062953. The next prime is 816063013. The reversal of 816063012 is 210360618.

816063012 is a `hidden beast` number, since 8 + 16 + 0 + 630 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 816016356 + 46656 = 28566^2 + 216^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (816063013) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 137013 + ... + 142844.

It is an arithmetic number, because the mean of its divisors is an integer number (50980799).

Almost surely, 2^816063012 is an apocalyptic number.

It is an amenable number.

816063012 is an abundant number, since it is smaller than the sum of its proper divisors (1325130546).

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

816063012 is a wasteful number, since it uses less digits than its factorization.

816063012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279879 (or 279862 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 816063012 is about 28566.8166234882. The cubic root of 816063012 is about 934.4897983835.

The spelling of 816063012 in words is "eight hundred sixteen million, sixty-three thousand, twelve".