55660000100056 has 32 divisors (see below), whose sum is σ = 113850303955200. Its totient is φ = 25299932545440.

The previous prime is 55660000100053. The next prime is 55660000100059. The reversal of 55660000100056 is 65000100006655.

It is an interprime number because it is at equal distance from previous prime (55660000100053) and next prime (55660000100059).

It is a super-2 number, since 2×55660000100056² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55660000099994 and 55660000100030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55660000100053) 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, 48888205 + ... + 50013763.

It is an arithmetic number, because the mean of its divisors is an integer number (3557821998600).

Almost surely, 2^{55660000100056} is an apocalyptic number.

It is an amenable number.

55660000100056 is an abundant number, since it is smaller than the sum of its proper divisors (58190303855144).

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

55660000100056 is a wasteful number, since it uses less digits than its factorization.

55660000100056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687519 (or 1687515 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 55660000100056 in words is "fifty-five trillion, six hundred sixty billion, one hundred thousand, fifty-six".