550156780262101 has 4 divisors (see below), whose sum is σ = 552142905822892. Its totient is φ = 548170654701312.

The previous prime is 550156780262099. The next prime is 550156780262113. The reversal of 550156780262101 is 101262087651055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 335797928544100 + 214358851718001 = 18324790^2 + 14640999^2 .

It is a cyclic number.

It is not a de Polignac number, because 550156780262101 - 2¹ = 550156780262099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550156780262701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993062779980 + ... + 993062780533.

It is an arithmetic number, because the mean of its divisors is an integer number (138035726455723).

Almost surely, 2^{550156780262101} is an apocalyptic number.

It is an amenable number.

550156780262101 is a deficient number, since it is larger than the sum of its proper divisors (1986125560791).

550156780262101 is a wasteful number, since it uses less digits than its factorization.

550156780262101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986125560790.

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 550156780262101 in words is "five hundred fifty trillion, one hundred fifty-six billion, seven hundred eighty million, two hundred sixty-two thousand, one hundred one".