816344033546 has 8 divisors (see below), whose sum is σ = 1257611078820. Its totient is φ = 397140340608.

The previous prime is 816344033459. The next prime is 816344033551. The reversal of 816344033546 is 645330443618.

It can be written as a sum of positive squares in 2 ways, for example, as 814706617321 + 1637416225 = 902611^2 + 40465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×816344033546² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 816344033546.

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 3 ways as a sum of consecutive naturals, for example, 5515837991 + ... + 5515838138.

Almost surely, 2^816344033546 is an apocalyptic number.

816344033546 is a deficient number, since it is larger than the sum of its proper divisors (441267045274).

816344033546 is a wasteful number, since it uses less digits than its factorization.

816344033546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031676168.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 816344033546 in words is "eight hundred sixteen billion, three hundred forty-four million, thirty-three thousand, five hundred forty-six".