1680520136752 has 40 divisors (see below), whose sum is σ = 3361312223360. Its totient is φ = 813089111040.

The previous prime is 1680520136663. The next prime is 1680520136753. The reversal of 1680520136752 is 2576310250861.

It is a super-2 number, since 2×1680520136752² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1680520136753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6304024 + ... + 6565192.

It is an arithmetic number, because the mean of its divisors is an integer number (84032805584).

Almost surely, 2^{1680520136752} is an apocalyptic number.

It is an amenable number.

1680520136752 is an abundant number, since it is smaller than the sum of its proper divisors (1680792086608).

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

1680520136752 is a wasteful number, since it uses less digits than its factorization.

1680520136752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274181 (or 274175 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 1680520136752 in words is "one trillion, six hundred eighty billion, five hundred twenty million, one hundred thirty-six thousand, seven hundred fifty-two".