555552780361 has 16 divisors (see below), whose sum is σ = 603726312960. Its totient is φ = 509276557440.

The previous prime is 555552780359. The next prime is 555552780373. The reversal of 555552780361 is 163087255555.

It is a cyclic number.

It is not a de Polignac number, because 555552780361 - 2¹ = 555552780359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 555552780299 and 555552780308.

It is not an unprimeable number, because it can be changed into a prime (555552780331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5544075 + ... + 5643391.

It is an arithmetic number, because the mean of its divisors is an integer number (37732894560).

Almost surely, 2^555552780361 is an apocalyptic number.

It is an amenable number.

555552780361 is a deficient number, since it is larger than the sum of its proper divisors (48173532599).

555552780361 is a wasteful number, since it uses less digits than its factorization.

555552780361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108864.

The product of its (nonzero) digits is 6300000, while the sum is 52.

The spelling of 555552780361 in words is "five hundred fifty-five billion, five hundred fifty-two million, seven hundred eighty thousand, three hundred sixty-one".