55660016111500 has 96 divisors (see below), whose sum is σ = 126904133655936. Its totient is φ = 21286373292800.

The previous prime is 55660016111473. The next prime is 55660016111507. The reversal of 55660016111500 is 511161006655.

It is a self number, because there is not a number n which added to its sum of digits gives 55660016111500.

It is not an unprimeable number, because it can be changed into a prime (55660016111507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24355962 + ... + 26543038.

It is an arithmetic number, because the mean of its divisors is an integer number (1321918058916).

Almost surely, 2^{55660016111500} is an apocalyptic number.

55660016111500 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 55660016111500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63452066827968).

55660016111500 is an abundant number, since it is smaller than the sum of its proper divisors (71244117544436).

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

55660016111500 is a wasteful number, since it uses less digits than its factorization.

55660016111500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189332 (or 2189320 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 55660016111500 in words is "fifty-five trillion, six hundred sixty billion, sixteen million, one hundred eleven thousand, five hundred".