555111666607 has 8 divisors (see below), whose sum is σ = 560426839632. Its totient is φ = 549798849600.

The previous prime is 555111666587. The next prime is 555111666617. The reversal of 555111666607 is 706666111555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555111666607 is a prime.

It is a super-2 number, since 2×555111666607² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555111666617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113694 + ... + 1059787.

It is an arithmetic number, because the mean of its divisors is an integer number (70053354954).

Almost surely, 2^555111666607 is an apocalyptic number.

555111666607 is a deficient number, since it is larger than the sum of its proper divisors (5315173025).

555111666607 is a wasteful number, since it uses less digits than its factorization.

555111666607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178009.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 555111666607 in words is "five hundred fifty-five billion, one hundred eleven million, six hundred sixty-six thousand, six hundred seven".