1866334080080 has 20 divisors (see below), whose sum is σ = 4339226736372. Its totient is φ = 746533632000.

The previous prime is 1866334080047. The next prime is 1866334080103. The reversal of 1866334080080 is 800804336681.

It can be written as a sum of positive squares in 2 ways, for example, as 1345015423504 + 521318656576 = 1159748^2 + 722024^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11664587921 + ... + 11664588080.

Almost surely, 2^{1866334080080} is an apocalyptic number.

1866334080080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1866334080080 is an abundant number, since it is smaller than the sum of its proper divisors (2472892656292).

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

1866334080080 is a wasteful number, since it uses less digits than its factorization.

1866334080080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23329176014 (or 23329176008 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 1866334080080 in words is "one trillion, eight hundred sixty-six billion, three hundred thirty-four million, eighty thousand, eighty".