5551556001718 has 16 divisors (see below), whose sum is σ = 8329258045440. Its totient is φ = 2775136743400.

The previous prime is 5551556001689. The next prime is 5551556001779. The reversal of 5551556001718 is 8171006551555.

It is a super-2 number, since 2×5551556001718² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286285803 + ... + 286305193.

It is an arithmetic number, because the mean of its divisors is an integer number (520578627840).

Almost surely, 2^{5551556001718} is an apocalyptic number.

5551556001718 is a deficient number, since it is larger than the sum of its proper divisors (2777702043722).

5551556001718 is a wasteful number, since it uses less digits than its factorization.

5551556001718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45083.

The product of its (nonzero) digits is 1050000, while the sum is 49.

The spelling of 5551556001718 in words is "five trillion, five hundred fifty-one billion, five hundred fifty-six million, one thousand, seven hundred eighteen".