1680238640055 has 64 divisors (see below), whose sum is σ = 2762774784000. Its totient is φ = 871757033472.

The previous prime is 1680238640033. The next prime is 1680238640063. The reversal of 1680238640055 is 5500468320861.

It is a happy number.

It is not a de Polignac number, because 1680238640055 - 2⁵ = 1680238640023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1680238639986 and 1680238640013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23084199 + ... + 23156871.

It is an arithmetic number, because the mean of its divisors is an integer number (43168356000).

Almost surely, 2^{1680238640055} is an apocalyptic number.

1680238640055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1680238640055 is a deficient number, since it is larger than the sum of its proper divisors (1082536143945).

1680238640055 is a wasteful number, since it uses less digits than its factorization.

1680238640055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73048.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 1680238640055 in words is "one trillion, six hundred eighty billion, two hundred thirty-eight million, six hundred forty thousand, fifty-five".