556686871629 has 16 divisors (see below), whose sum is σ = 862191066240. Its totient is φ = 312891917760.

The previous prime is 556686871583. The next prime is 556686871633. The reversal of 556686871629 is 926178686655.

It is not a de Polignac number, because 556686871629 - 2⁷ = 556686871501 is a prime.

It is a super-2 number, since 2×556686871629² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556686871679) 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 15 ways as a sum of consecutive naturals, for example, 217284774 + ... + 217287335.

It is an arithmetic number, because the mean of its divisors is an integer number (53886941640).

Almost surely, 2^556686871629 is an apocalyptic number.

It is an amenable number.

556686871629 is a deficient number, since it is larger than the sum of its proper divisors (305504194611).

556686871629 is a wasteful number, since it uses less digits than its factorization.

556686871629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434572180.

The product of its digits is 261273600, while the sum is 69.

The spelling of 556686871629 in words is "five hundred fifty-six billion, six hundred eighty-six million, eight hundred seventy-one thousand, six hundred twenty-nine".