814829632066 has 4 divisors (see below), whose sum is σ = 1222244448102. Its totient is φ = 407414816032.

The previous prime is 814829632049. The next prime is 814829632069. The reversal of 814829632066 is 660236928418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 814829377041 + 255025 = 902679^2 + 505^2 .

It is a junction number, because it is equal to n+sod(n) for n = 814829631998 and 814829632016.

It is not an unprimeable number, because it can be changed into a prime (814829632069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203707408015 + ... + 203707408018.

Almost surely, 2^814829632066 is an apocalyptic number.

814829632066 is a deficient number, since it is larger than the sum of its proper divisors (407414816036).

814829632066 is a wasteful number, since it uses less digits than its factorization.

814829632066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407414816035.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 814829632066 in words is "eight hundred fourteen billion, eight hundred twenty-nine million, six hundred thirty-two thousand, sixty-six".