55161666116660 has 24 divisors (see below), whose sum is σ = 120875998795776. Its totient is φ = 21105333122720.

The previous prime is 55161666116657. The next prime is 55161666116663. The reversal of 55161666116660 is 6661166616155.

It is an interprime number because it is at equal distance from previous prime (55161666116657) and next prime (55161666116663).

It is a junction number, because it is equal to n+sod(n) for n = 55161666116596 and 55161666116605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55161666116663) 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, 59958332276 + ... + 59958333195.

It is an arithmetic number, because the mean of its divisors is an integer number (5036499949824).

Almost surely, 2^{55161666116660} is an apocalyptic number.

It is an amenable number.

55161666116660 is an abundant number, since it is smaller than the sum of its proper divisors (65714332679116).

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

55161666116660 is a wasteful number, since it uses less digits than its factorization.

55161666116660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119916665503 (or 119916665501 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 55161666116660 in words is "fifty-five trillion, one hundred sixty-one billion, six hundred sixty-six million, one hundred sixteen thousand, six hundred sixty".