1680238640052 has 72 divisors (see below), whose sum is σ = 4854279760512. Its totient is φ = 480042763200.

The previous prime is 1680238640033. The next prime is 1680238640063. The reversal of 1680238640052 is 2500468320861.

1680238640052 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 238 + 6 + 400 + 5 + 2 = 666.

It is a congruent number.

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, 4878777 + ... + 5211807.

Almost surely, 2^{1680238640052} is an apocalyptic number.

1680238640052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1680238640052 is an abundant number, since it is smaller than the sum of its proper divisors (3174041120460).

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

1680238640052 is a wasteful number, since it uses less digits than its factorization.

1680238640052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353069 (or 353064 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 1680238640052 in words is "one trillion, six hundred eighty billion, two hundred thirty-eight million, six hundred forty thousand, fifty-two".