16842550401 has 12 divisors (see below), whose sum is σ = 25229170512. Its totient is φ = 11228366772.

The previous prime is 16842550367. The next prime is 16842550411. The reversal of 16842550401 is 10405524861.

It is a happy number.

16842550401 is a `hidden beast` number, since 1 + 68 + 4 + 2 + 550 + 40 + 1 = 666.

It is not a de Polignac number, because 16842550401 - 2⁶ = 16842550337 is a prime.

It is a super-3 number, since 3×16842550401³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16842550411) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 34655211 + ... + 34655696.

It is an arithmetic number, because the mean of its divisors is an integer number (2102430876).

Almost surely, 2^16842550401 is an apocalyptic number.

It is an amenable number.

16842550401 is a deficient number, since it is larger than the sum of its proper divisors (8386620111).

16842550401 is an frugal number, since it uses more digits than its factorization.

16842550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69310922 (or 69310910 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 16842550401 in words is "sixteen billion, eight hundred forty-two million, five hundred fifty thousand, four hundred one".