16826813515604 has 6 divisors (see below), whose sum is σ = 29446923652314. Its totient is φ = 8413406757800.

The previous prime is 16826813515583. The next prime is 16826813515643. The reversal of 16826813515604 is 40651531862861.

It can be written as a sum of positive squares in only one way, i.e., 16820333587600 + 6479928004 = 4101260^2 + 80498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16826813515604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103351689447 + ... + 2103351689454.

It is an arithmetic number, because the mean of its divisors is an integer number (4907820608719).

Almost surely, 2^{16826813515604} is an apocalyptic number.

It is an amenable number.

16826813515604 is a deficient number, since it is larger than the sum of its proper divisors (12620110136710).

16826813515604 is a wasteful number, since it uses less digits than its factorization.

16826813515604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206703378905 (or 4206703378903 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 16826813515604 in words is "sixteen trillion, eight hundred twenty-six billion, eight hundred thirteen million, five hundred fifteen thousand, six hundred four".