816404648095 has 16 divisors (see below), whose sum is σ = 1024052402880. Its totient is φ = 623644268544.

The previous prime is 816404648077. The next prime is 816404648119. The reversal of 816404648095 is 590846404618.

It is a cyclic number.

It is not a de Polignac number, because 816404648095 - 2¹¹ = 816404646047 is a prime.

It is a super-2 number, since 2×816404648095² (a number of 25 digits) 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6085440 + ... + 6218149.

It is an arithmetic number, because the mean of its divisors is an integer number (64003275180).

Almost surely, 2^816404648095 is an apocalyptic number.

816404648095 is a deficient number, since it is larger than the sum of its proper divisors (207647754785).

816404648095 is a wasteful number, since it uses less digits than its factorization.

816404648095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12304194.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 816404648095 in words is "eight hundred sixteen billion, four hundred four million, six hundred forty-eight thousand, ninety-five".