20683150178353 has 32 divisors (see below), whose sum is σ = 22901645797632. Its totient is φ = 18561863577600.

The previous prime is 20683150178351. The next prime is 20683150178363. The reversal of 20683150178353 is 35387105138602.

It is a cyclic number.

It is not a de Polignac number, because 20683150178353 - 2¹ = 20683150178351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20683150178353.

It is not an unprimeable number, because it can be changed into a prime (20683150178351) 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, 395286433 + ... + 395338753.

It is an arithmetic number, because the mean of its divisors is an integer number (715676431176).

Almost surely, 2^{20683150178353} is an apocalyptic number.

It is an amenable number.

20683150178353 is a deficient number, since it is larger than the sum of its proper divisors (2218495619279).

20683150178353 is a wasteful number, since it uses less digits than its factorization.

20683150178353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58345.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 20683150178353 in words is "twenty trillion, six hundred eighty-three billion, one hundred fifty million, one hundred seventy-eight thousand, three hundred fifty-three".