556665500001 has 32 divisors (see below), whose sum is σ = 826981585920. Its totient is φ = 330709075200.

The previous prime is 556665499991. The next prime is 556665500011. The reversal of 556665500001 is 100005566655.

It is an interprime number because it is at equal distance from previous prime (556665499991) and next prime (556665500011).

It is not a de Polignac number, because 556665500001 - 2¹⁵ = 556665467233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (556665500011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10504311 + ... + 10557171.

It is an arithmetic number, because the mean of its divisors is an integer number (25843174560).

Almost surely, 2^556665500001 is an apocalyptic number.

It is an amenable number.

556665500001 is a deficient number, since it is larger than the sum of its proper divisors (270316085919).

556665500001 is a wasteful number, since it uses less digits than its factorization.

556665500001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62217.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 556665500001 in words is "five hundred fifty-six billion, six hundred sixty-five million, five hundred thousand, one".