109557626556 has 48 divisors (see below), whose sum is σ = 309339184896. Its totient is φ = 29460873984.

The previous prime is 109557626543. The next prime is 109557626567. The reversal of 109557626556 is 655626755901.

It is a super-2 number, since 2×109557626556² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109557626496 and 109557626505.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38359086 + ... + 38361941.

It is an arithmetic number, because the mean of its divisors is an integer number (6444566352).

Almost surely, 2^109557626556 is an apocalyptic number.

It is an amenable number.

109557626556 is an abundant number, since it is smaller than the sum of its proper divisors (199781558340).

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

109557626556 is a wasteful number, since it uses less digits than its factorization.

109557626556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76721058 (or 76721056 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 57.

The spelling of 109557626556 in words is "one hundred nine billion, five hundred fifty-seven million, six hundred twenty-six thousand, five hundred fifty-six".