20839361061165 has 8 divisors (see below), whose sum is σ = 33342977697888. Its totient is φ = 11114325899280.

The previous prime is 20839361061139. The next prime is 20839361061203. The reversal of 20839361061165 is 56116016393802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20839361061165 - 2⁸ = 20839361060909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694645368691 + ... + 694645368720.

It is an arithmetic number, because the mean of its divisors is an integer number (4167872212236).

Almost surely, 2^{20839361061165} is an apocalyptic number.

It is an amenable number.

20839361061165 is a deficient number, since it is larger than the sum of its proper divisors (12503616636723).

20839361061165 is a wasteful number, since it uses less digits than its factorization.

20839361061165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389290737419.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 20839361061165 in words is "twenty trillion, eight hundred thirty-nine billion, three hundred sixty-one million, sixty-one thousand, one hundred sixty-five".