20043421636415 has 8 divisors (see below), whose sum is σ = 24052151631408. Its totient is φ = 16034706864000.

The previous prime is 20043421636411. The next prime is 20043421636417. The reversal of 20043421636415 is 51463612434002.

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

It is not a de Polignac number, because 20043421636415 - 2² = 20043421636411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043421636411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674762 + ... + 6367271.

It is an arithmetic number, because the mean of its divisors is an integer number (3006518953926).

Almost surely, 2^{20043421636415} is an apocalyptic number.

20043421636415 is a deficient number, since it is larger than the sum of its proper divisors (4008729994993).

20043421636415 is an equidigital number, since it uses as much as digits as its factorization.

20043421636415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611289.

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 20043421636415 in words is "twenty trillion, forty-three billion, four hundred twenty-one million, six hundred thirty-six thousand, four hundred fifteen".