5551918129206 has 20 divisors (see below), whose sum is σ = 12440409141732. Its totient is φ = 1850639376348.

The previous prime is 5551918129201. The next prime is 5551918129211. The reversal of 5551918129206 is 6029218191555.

5551918129206 is a `hidden beast` number, since 5 + 5 + 519 + 1 + 81 + 29 + 20 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (5551918129201) and next prime (5551918129211).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551918129201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17135549620 + ... + 17135549943.

Almost surely, 2^{5551918129206} is an apocalyptic number.

5551918129206 is an abundant number, since it is smaller than the sum of its proper divisors (6888491012526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5551918129206 is a wasteful number, since it uses less digits than its factorization.

5551918129206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34271099577 (or 34271099568 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 54.

The spelling of 5551918129206 in words is "five trillion, five hundred fifty-one billion, nine hundred eighteen million, one hundred twenty-nine thousand, two hundred six".