549807722101 has 64 divisors (see below), whose sum is σ = 650229350400. Its totient is φ = 459950400000.

The previous prime is 549807722099. The next prime is 549807722117. The reversal of 549807722101 is 101227708945.

It is a 5-Lehmer number, since φ(549807722101) divides (549807722101-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 549807722101 - 2¹ = 549807722099 is a prime.

It is a deceptive number, since it divides R_549807722100.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549807722131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469519246 + ... + 469520416.

It is an arithmetic number, because the mean of its divisors is an integer number (10159833600).

It is a Poulet number, since it divides 2^549807722100-1.

Almost surely, 2^549807722101 is an apocalyptic number.

549807722101 is the 331605-th centered decagonal number.

It is an amenable number.

549807722101 is a deficient number, since it is larger than the sum of its proper divisors (100421628299).

549807722101 is a wasteful number, since it uses less digits than its factorization.

549807722101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 549807722101 in words is "five hundred forty-nine billion, eight hundred seven million, seven hundred twenty-two thousand, one hundred one".