20696039345658 has 8 divisors (see below), whose sum is σ = 41392078691328. Its totient is φ = 6898679781884.

The previous prime is 20696039345633. The next prime is 20696039345741. The reversal of 20696039345658 is 85654393069602.

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

20696039345658 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724669945466 + ... + 1724669945477.

It is an arithmetic number, because the mean of its divisors is an integer number (5174009836416).

Almost surely, 2^{20696039345658} is an apocalyptic number.

20696039345658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20696039345658 is a wasteful number, since it uses less digits than its factorization.

20696039345658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449339890948.

The product of its (nonzero) digits is 251942400, while the sum is 66.

The spelling of 20696039345658 in words is "twenty trillion, six hundred ninety-six billion, thirty-nine million, three hundred forty-five thousand, six hundred fifty-eight".