549909185306 has 16 divisors (see below), whose sum is σ = 888328594944. Its totient is φ = 253800308784.

The previous prime is 549909185251. The next prime is 549909185333. The reversal of 549909185306 is 603581909945.

It is a super-2 number, since 2×549909185306² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180495 + ... + 2419581.

It is an arithmetic number, because the mean of its divisors is an integer number (55520537184).

Almost surely, 2^549909185306 is an apocalyptic number.

549909185306 is a deficient number, since it is larger than the sum of its proper divisors (338419409638).

549909185306 is a wasteful number, since it uses less digits than its factorization.

549909185306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327565.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 549909185306 in words is "five hundred forty-nine billion, nine hundred nine million, one hundred eighty-five thousand, three hundred six".