20700782183093 has 16 divisors (see below), whose sum is σ = 20999707830000. Its totient is φ = 20403397504512.

The previous prime is 20700782183089. The next prime is 20700782183099. The reversal of 20700782183093 is 39038128700702.

It can be written as a sum of positive squares in 8 ways, for example, as 1058096135044 + 19642686048049 = 1028638^2 + 4432007^2 .

It is a cyclic number.

It is not a de Polignac number, because 20700782183093 - 2² = 20700782183089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700782183099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54541703 + ... + 54919931.

It is an arithmetic number, because the mean of its divisors is an integer number (1312481739375).

Almost surely, 2^{20700782183093} is an apocalyptic number.

It is an amenable number.

20700782183093 is a deficient number, since it is larger than the sum of its proper divisors (298925646907).

20700782183093 is a wasteful number, since it uses less digits than its factorization.

20700782183093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380264.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 20700782183093 in words is "twenty trillion, seven hundred billion, seven hundred eighty-two million, one hundred eighty-three thousand, ninety-three".