55660650000 has 120 divisors (see below), whose sum is σ = 179726496768. Its totient is φ = 14842800000.

The previous prime is 55660649983. The next prime is 55660650013. The reversal of 55660650000 is 5606655.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35536 + ... + 335535.

Almost surely, 2^55660650000 is an apocalyptic number.

55660650000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55660650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89863248384).

55660650000 is an abundant number, since it is smaller than the sum of its proper divisors (124065846768).

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

55660650000 is an equidigital number, since it uses as much as digits as its factorization.

55660650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371107 (or 371081 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

It can be divided in two parts, 556606 and 50000, that added together give a palindrome (606606).

The spelling of 55660650000 in words is "fifty-five billion, six hundred sixty million, six hundred fifty thousand".