20673755934415 has 8 divisors (see below), whose sum is σ = 24905038278960. Its totient is φ = 16474650642432.

The previous prime is 20673755934397. The next prime is 20673755934431. The reversal of 20673755934415 is 51443955737602.

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

It is a cyclic number.

It is not a de Polignac number, because 20673755934415 - 2⁵ = 20673755934383 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, 8044261725 + ... + 8044264294.

It is an arithmetic number, because the mean of its divisors is an integer number (3113129784870).

Almost surely, 2^{20673755934415} is an apocalyptic number.

20673755934415 is a deficient number, since it is larger than the sum of its proper divisors (4231282344545).

20673755934415 is a wasteful number, since it uses less digits than its factorization.

20673755934415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16088526281.

The product of its (nonzero) digits is 95256000, while the sum is 61.

The spelling of 20673755934415 in words is "twenty trillion, six hundred seventy-three billion, seven hundred fifty-five million, nine hundred thirty-four thousand, four hundred fifteen".