55655566156100 has 18 divisors (see below), whose sum is σ = 120772578558954. Its totient is φ = 22262226462400.

The previous prime is 55655566156061. The next prime is 55655566156109. The reversal of 55655566156100 is 165166555655.

It can be written as a sum of positive squares in 3 ways, for example, as 15231707339524 + 40423858816576 = 3902782^2 + 6357976^2 .

It is not an unprimeable number, because it can be changed into a prime (55655566156109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278277830681 + ... + 278277830880.

Almost surely, 2^{55655566156100} is an apocalyptic number.

55655566156100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55655566156100 is an abundant number, since it is smaller than the sum of its proper divisors (65117012402854).

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

55655566156100 is a wasteful number, since it uses less digits than its factorization.

55655566156100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556555661575 (or 556555661568 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 56.

The spelling of 55655566156100 in words is "fifty-five trillion, six hundred fifty-five billion, five hundred sixty-six million, one hundred fifty-six thousand, one hundred".