55166005660 has 24 divisors (see below), whose sum is σ = 115919884080. Its totient is φ = 22052826624.

The previous prime is 55166005649. The next prime is 55166005681. The reversal of 55166005660 is 6650066155.

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 7 ways as a sum of consecutive naturals, for example, 815125 + ... + 880204.

It is an arithmetic number, because the mean of its divisors is an integer number (4829995170).

Almost surely, 2^55166005660 is an apocalyptic number.

It is an amenable number.

55166005660 is an abundant number, since it is smaller than the sum of its proper divisors (60753878420).

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

55166005660 is a wasteful number, since it uses less digits than its factorization.

55166005660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696965 (or 1696963 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 55166005660 in words is "fifty-five billion, one hundred sixty-six million, five thousand, six hundred sixty".