1680140608812 has 96 divisors (see below), whose sum is σ = 4492899956160. Its totient is φ = 549479795904.

The previous prime is 1680140608747. The next prime is 1680140608813. The reversal of 1680140608812 is 2188060410861.

1680140608812 is a `hidden beast` number, since 16 + 8 + 0 + 14 + 0 + 608 + 8 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (1680140608813) 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, 1348243 + ... + 2275530.

It is an arithmetic number, because the mean of its divisors is an integer number (46801041210).

Almost surely, 2^{1680140608812} is an apocalyptic number.

1680140608812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1680140608812 is an abundant number, since it is smaller than the sum of its proper divisors (2812759347348).

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

1680140608812 is an equidigital number, since it uses as much as digits as its factorization.

1680140608812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623851 (or 3623831 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 1680140608812 in words is "one trillion, six hundred eighty billion, one hundred forty million, six hundred eight thousand, eight hundred twelve".